ttss/mpk-ttss - git.Jacekk.net

parent: 0782c865 | patch | commit | ignore whitespace

Jacek Kowalski

2016-12-06 c25e919b9a0c86fbf07c4c34b4daeaab603d86ce

Separate JavaScript from HTML

1 files modified

1 files added

	index.html	334 ●●●●● patch \| view \| raw \| blame \| history
	index.js	316 ●●●●● patch \| view \| raw \| blame \| history

 index.html

@@ -1,18 +1,3 @@
<!--
URLs:

MODE=arrival,departure

http://www.ttss.krakow.pl

/internetservice/services/passageInfo/stopPassages/stop?stop=84&mode=MODE
/internetservice/services/passageInfo/stopPassages/stopPoint?stopPoint=stopPoint&mode=MODE

/internetservice/services/routeInfo/routeStops?routeId=

/internetservice/services/lookup/autocomplete/nearStops/json?lat=&lon=
/internetservice/services/lookup/autocomplete/json?query=
-->
<!DOCTYPE html>
<html lang="en">
    <head>
@@ -125,323 +110,6 @@
            </div>
        </div>
        <script src="https://code.jquery.com/jquery-3.1.1.min.js" integrity="sha384-3ceskX3iaEnIogmQchP8opvBy3Mi7Ce34nWjpBIwVTHfGYWQS9jwHDVRnpKKHJg7"  crossorigin="anonymous"></script>
        <script type="text/javascript">
            //var ttss_base = 'http://www.ttss.krakow.pl/internetservice/services';
            var ttss_base = '/proxy.php';
            var ttss_refresh = 20000; // 20 seconds
			
            var stop_id;
            var stop_name = document.getElementById('stop-name');
            var stop_name_form = stop_name.form;
            var stop_name_autocomplete = document.getElementById('stop-name-autocomplete');
            var stop_name_autocomplete_xhr;
			
            var times_xhr;
            var times_timer;
            var times_stop_name = document.getElementById('times-stop-name');
            var times_alerts = document.getElementById('times-alerts');
            var times_table = document.getElementById('times-table');
            var times_lines = document.getElementById('times-lines');
			
            /*
            var route_xhr;
            var route_line = document.getElementById('route-line');
            var route_table = document.getElementById('route-table');
            */
			
            var refresh_button = document.getElementById('refresh');
            var refresh_text = document.getElementById('refresh-text');
            var refresh_time;
            var refresh_timer;
			
            var alert = document.getElementById('alert');
            var alert_text = document.getElementById('alert-text');
            var alert_close = document.getElementById('alert-close');
			
            function parseStatus(status) {
                switch(status.status) {
                    case 'STOPPING':
                        return '<<<';
                    case 'PREDICTED':
                        if(status.actualRelativeTime <= 0)
                            return '<<<';
                        if(status.actualRelativeTime >= 60)
                            return Math.floor(status.actualRelativeTime / 60) + ' min';
                        return status.actualRelativeTime + ' s';
                    case 'DEPARTED':
                        return Math.floor(-status.actualRelativeTime / 60) + ' min ago';
                    default:
                        return status.mixedTime;
                }
            }
			
            function parseTime(date, time) {
                var result = new Date(date.getFullYear(), date.getMonth(), date.getDay());
                var time_split = time.split(':');
                result.setHours(time_split[0]);
                result.setMinutes(time_split[1]);
				
                if(result.getTime() - date.getTime() > 72000000) {
                    result.setTime(result.getTime() - 86400000);
                }
				
                if(date.getTime() - result.getTime() > 72000000) {
                    result.setTime(result.getTime() + 86400000);
                }
				
                return result;
            }
			
            function parseDelay(status) {
                if(!status.actualTime) return '?';
                if(!status.plannedTime) return '?';
				
                var now = new Date();
                var actual = parseTime(now, status.actualTime);
                var planned = parseTime(now, status.plannedTime);
				
                return ((actual.getTime() - planned.getTime()) / 1000 / 60) + ' min';
            }
			
            function deleteChildren(element) {
                while(element.lastChild) element.removeChild(element.lastChild);
            }
			
            function addElementWithText(parent, element, text) {
                var elem = document.createElement(element);
                elem.appendChild(document.createTextNode(text));
                parent.appendChild(elem);
                return elem;
            }
			
            function addCellWithText(parent, text) {
                addElementWithText(parent, 'td', text);
            }
			
            function addParaWithText(parent, text) {
                addElementWithText(parent, 'p', text);
            }
			
            function setText(element, text) {
                deleteChildren(element);
                element.appendChild(document.createTextNode(text));
            }
			
            function fail(message, more) {
                if(refresh_timer) clearInterval(refresh_timer);
                if(times_timer) clearTimeout(times_timer);
				
                setText(alert_text, message);
                alert.style.display = 'block';
				
                console.log(message + ' More details follow.');
                if(more) console.log(more);
            }
			
            function fail_ajax(data) {
                // abort() is not a failure
                if(data.readyState == 0 && data.statusText == 'abort') return;
				
                if(data.status == 0) {
                    fail('Request failed - please check your network connectivity.', data);
                } else if (data.statusText) {
                    fail('Internet request failed with error: ' + data.statusText + '.', data);
                } else {
                    fail('Internet request failed.', data);
                }
            }
			
            function loadTimes(stopId = null, clearRoute = false) {
                if(!stopId) stopId = stop_id;
                if(!stopId) return;
				
                if(times_timer) clearTimeout(times_timer);
                if(times_xhr) times_xhr.abort();
				
                refresh_button.removeAttribute('disabled');
				
                times_xhr = $.get(
                    ttss_base + '/passageInfo/stopPassages/stop' 
                        + '?stop=' + encodeURIComponent(stopId)
                        + '&mode=departure'
                ).done(function(data) {
                    setText(times_stop_name, data.stopName);
                    deleteChildren(times_alerts);
                    deleteChildren(times_table);
                    deleteChildren(times_lines);
                    /*
                    if(clearRoute) {
                        deleteChildren(route_line);
                        deleteChildren(route_table);
                    }
                    */
					
                    for(var i = 0, il = data.generalAlerts.length; i < il; i++) {
                        addParaWithText(times_alerts, data.generalAlerts[i]);
                    }
					
                    for(var i = 0, il = data.old.length; i < il; i++) {
                        var tr = document.createElement('tr');
                        addCellWithText(tr, data.old[i].patternText);
                        addCellWithText(tr, data.old[i].direction);
                        var status = parseStatus(data.old[i]);
                        addCellWithText(tr, status);
                        addCellWithText(tr, '');
						
                        tr.className = 'active';
                        times_table.appendChild(tr);
                    }
					
                    for(var i = 0, il = data.actual.length; i < il; i++) {
                        var tr = document.createElement('tr');
                        addCellWithText(tr, data.actual[i].patternText);
                        addCellWithText(tr, data.actual[i].direction);
                        var status = parseStatus(data.actual[i]);
                        addCellWithText(tr, status);
                        var delay = parseDelay(data.actual[i]);
                        addCellWithText(tr, delay);
						
                        if(status == '<<<') tr.className = 'success';
                        else if(parseInt(delay) > 9) tr.className = 'danger';
                        else if(parseInt(delay) > 3) tr.className = 'warning';
                        times_table.appendChild(tr);
                    }
					
                    for(var i = 0, il = data.routes.length; i < il; i++) {
                        var tr = document.createElement('tr');
                        addCellWithText(tr, data.routes[i].name);
                        addCellWithText(tr, data.routes[i].directions.join(' - '));
                        addCellWithText(tr, data.routes[i].authority);
						
                        /*
                        tr.addEventListener('click', function(routeId, routeTr){ return function(e) {
                            var trs = tr.parentNode;
                            for(var i = 0; i < trs.childNodes.length; i++) {
                                trs.childNodes[i].removeAttribute('class');
                            }
                            routeTr.className = 'warning';
							
                            if(route_xhr) route_xhr.abort();
                            route_xhr = $.get(
                                ttss_base + '/routeInfo/routeStops'
                                    + '?routeId=' + encodeURIComponent(routeId)
                            ).done(function(data) {
                                setText(route_line, data.route.name + ': '
                                    + data.route.directions.join(' - '));
                                deleteChildren(route_table);
								
                                routeTr.className = 'success';
								
                                for(var i = 0, il = data.stops.length; i < il; i++) {
                                    var tr = document.createElement('tr');
                                    addCellWithText(tr, data.stops[i].name);
                                    route_table.appendChild(tr);
                                }
                            }).fail(fail_ajax);
                        }}(data.routes[i].id, tr));
                        */
						
                        times_lines.appendChild(tr);
						
                        for(var j = 0, jl = data.routes[i].alerts.length; j < jl; j++) {
                            addParaWithText(
                                times_alerts,
                                'Line ' +  data.routes[i].name + ': '
                                    + data.routes[i].alerts[j]
                            );
                        }
                    }
					
                    startTimer(new Date());
					
                    times_timer = setTimeout(function(){ loadTimes(); }, ttss_refresh);
                }).fail(fail_ajax);
            }
			
            function declinate(num, singular, plural) {
                if(num == 1) return num + ' ' + singular;
                return num + ' ' + plural;
            }
			
            function startTimer(date) {
                if(date) {
                    setText(refresh_text, 'Last refreshed: just now')
                    refresh_time = date;
                }
                if(!refresh_time) return;
                if(refresh_timer) clearInterval(refresh_timer);
				
                var now = new Date();
                var ms = now.getTime() - refresh_time.getTime();
				
                var interval = 1000;
                if(ms >= 120000) interval = 60000;
				
                refresh_timer = setInterval(function() {
                    var now = new Date();
                    var ms = now.getTime() - refresh_time.getTime();
					
                    if(ms >= 120000) {
                        setText(refresh_text, 'Last refreshed: '
                            + declinate(Math.floor(ms / 60000), 'minute ago', 'minutes ago'));
                        startTimer();
                    } else {
                        setText(refresh_text, 'Last refreshed: '
                            + declinate(Math.floor(ms / 1000), 'second ago', 'seconds ago'));
                    }
                }, interval);
            }
			
            function init() {
                if(!window.jQuery) {
                    fail('Required JavaScript jQuery library failed to load. You may try refreshing the page.');
                    return;
                }
				
                $.ajaxSetup({
                    dataType: 'json',
                    timeout: 3000,
                });
				
                stop_name.addEventListener('input', function(e) {
                    if(!stop_name.value) return;
                    if(stop_name_autocomplete_xhr) stop_name_autocomplete_xhr.abort();
					
                    stop_name_autocomplete_xhr = $.get(
                        ttss_base + '/lookup/autocomplete/json'
                            + '?query=' + encodeURIComponent(stop_name.value)
                    ).done(function(data) {
                        deleteChildren(stop_name_autocomplete);
                        for(var i = 1, il = data.length; i < il; i++) {
                            var opt = document.createElement('option');
                            opt.value = data[i].id;
                            opt.appendChild(document.createTextNode(data[i].name));
                            stop_name_autocomplete.appendChild(opt);
                        }
						
                        if(!stop_id) setText(refresh_text, 'Select the stop and click "Go"');
                    }).fail(fail_ajax);
                });
				
                setText(refresh_text, 'Enter the stop name to begin');
				
                stop_name_form.addEventListener('submit', function(e) {
                    e.preventDefault();
                    if(!stop_name_autocomplete.value) return;
                    stop_id = stop_name_autocomplete.value;
                    loadTimes(stop_id, true);
                });
				
                refresh_button.addEventListener('click', function(e) {
                    loadTimes(stop_id);
                });
				
                alert_close.addEventListener('click', function(e) {
                    alert.style.display = 'none';
                });
            }
			
            init();
        </script>
        <script type="text/javascript" src="index.js"></script>
    </body>
</html>

 index.js

New file
@@ -0,0 +1,316 @@
//var ttss_base = 'http://www.ttss.krakow.pl/internetservice/services';
var ttss_base = '/proxy.php';
var ttss_refresh = 20000; // 20 seconds

var stop_id;
var stop_name = document.getElementById('stop-name');
var stop_name_form = stop_name.form;
var stop_name_autocomplete = document.getElementById('stop-name-autocomplete');
var stop_name_autocomplete_xhr;

var times_xhr;
var times_timer;
var times_stop_name = document.getElementById('times-stop-name');
var times_alerts = document.getElementById('times-alerts');
var times_table = document.getElementById('times-table');
var times_lines = document.getElementById('times-lines');

/*
var route_xhr;
var route_line = document.getElementById('route-line');
var route_table = document.getElementById('route-table');
*/

var refresh_button = document.getElementById('refresh');
var refresh_text = document.getElementById('refresh-text');
var refresh_time;
var refresh_timer;

var alert = document.getElementById('alert');
var alert_text = document.getElementById('alert-text');
var alert_close = document.getElementById('alert-close');

function parseStatus(status) {
    switch(status.status) {
        case 'STOPPING':
            return '<<<';
        case 'PREDICTED':
            if(status.actualRelativeTime <= 0)
                return '<<<';
            if(status.actualRelativeTime >= 60)
                return Math.floor(status.actualRelativeTime / 60) + ' min';
            return status.actualRelativeTime + ' s';
        case 'DEPARTED':
            return Math.floor(-status.actualRelativeTime / 60) + ' min ago';
        default:
            return status.mixedTime;
    }
}

function parseTime(date, time) {
    var result = new Date(date.getFullYear(), date.getMonth(), date.getDay());
    var time_split = time.split(':');
    result.setHours(time_split[0]);
    result.setMinutes(time_split[1]);
	
    if(result.getTime() - date.getTime() > 72000000) {
        result.setTime(result.getTime() - 86400000);
    }
	
    if(date.getTime() - result.getTime() > 72000000) {
        result.setTime(result.getTime() + 86400000);
    }
	
    return result;
}

function parseDelay(status) {
    if(!status.actualTime) return '?';
    if(!status.plannedTime) return '?';
	
    var now = new Date();
    var actual = parseTime(now, status.actualTime);
    var planned = parseTime(now, status.plannedTime);
	
    return ((actual.getTime() - planned.getTime()) / 1000 / 60) + ' min';
}

function deleteChildren(element) {
    while(element.lastChild) element.removeChild(element.lastChild);
}

function addElementWithText(parent, element, text) {
    var elem = document.createElement(element);
    elem.appendChild(document.createTextNode(text));
    parent.appendChild(elem);
    return elem;
}

function addCellWithText(parent, text) {
    addElementWithText(parent, 'td', text);
}

function addParaWithText(parent, text) {
    addElementWithText(parent, 'p', text);
}

function setText(element, text) {
    deleteChildren(element);
    element.appendChild(document.createTextNode(text));
}

function fail(message, more) {
    if(refresh_timer) clearInterval(refresh_timer);
    if(times_timer) clearTimeout(times_timer);
	
    setText(alert_text, message);
    alert.style.display = 'block';
	
    console.log(message + ' More details follow.');
    if(more) console.log(more);
}

function fail_ajax(data) {
    // abort() is not a failure
    if(data.readyState == 0 && data.statusText == 'abort') return;
	
    if(data.status == 0) {
        fail('Request failed - please check your network connectivity.', data);
    } else if (data.statusText) {
        fail('Internet request failed with error: ' + data.statusText + '.', data);
    } else {
        fail('Internet request failed.', data);
    }
}

function loadTimes(stopId = null, clearRoute = false) {
    if(!stopId) stopId = stop_id;
    if(!stopId) return;
	
    if(times_timer) clearTimeout(times_timer);
    if(times_xhr) times_xhr.abort();
	
    refresh_button.removeAttribute('disabled');
	
    times_xhr = $.get(
        ttss_base + '/passageInfo/stopPassages/stop' 
            + '?stop=' + encodeURIComponent(stopId)
            + '&mode=departure'
    ).done(function(data) {
        setText(times_stop_name, data.stopName);
        deleteChildren(times_alerts);
        deleteChildren(times_table);
        deleteChildren(times_lines);
        /*
        if(clearRoute) {
            deleteChildren(route_line);
            deleteChildren(route_table);
        }
        */
		
        for(var i = 0, il = data.generalAlerts.length; i < il; i++) {
            addParaWithText(times_alerts, data.generalAlerts[i]);
        }
		
        for(var i = 0, il = data.old.length; i < il; i++) {
            var tr = document.createElement('tr');
            addCellWithText(tr, data.old[i].patternText);
            addCellWithText(tr, data.old[i].direction);
            var status = parseStatus(data.old[i]);
            addCellWithText(tr, status);
            addCellWithText(tr, '');
			
            tr.className = 'active';
            times_table.appendChild(tr);
        }
		
        for(var i = 0, il = data.actual.length; i < il; i++) {
            var tr = document.createElement('tr');
            addCellWithText(tr, data.actual[i].patternText);
            addCellWithText(tr, data.actual[i].direction);
            var status = parseStatus(data.actual[i]);
            addCellWithText(tr, status);
            var delay = parseDelay(data.actual[i]);
            addCellWithText(tr, delay);
			
            if(status == '<<<') tr.className = 'success';
            else if(parseInt(delay) > 9) tr.className = 'danger';
            else if(parseInt(delay) > 3) tr.className = 'warning';
            times_table.appendChild(tr);
        }
		
        for(var i = 0, il = data.routes.length; i < il; i++) {
            var tr = document.createElement('tr');
            addCellWithText(tr, data.routes[i].name);
            addCellWithText(tr, data.routes[i].directions.join(' - '));
            addCellWithText(tr, data.routes[i].authority);
			
            /*
            tr.addEventListener('click', function(routeId, routeTr){ return function(e) {
                var trs = tr.parentNode;
                for(var i = 0; i < trs.childNodes.length; i++) {
                    trs.childNodes[i].removeAttribute('class');
                }
                routeTr.className = 'warning';
				
                if(route_xhr) route_xhr.abort();
                route_xhr = $.get(
                    ttss_base + '/routeInfo/routeStops'
                        + '?routeId=' + encodeURIComponent(routeId)
                ).done(function(data) {
                    setText(route_line, data.route.name + ': '
                        + data.route.directions.join(' - '));
                    deleteChildren(route_table);
					
                    routeTr.className = 'success';
					
                    for(var i = 0, il = data.stops.length; i < il; i++) {
                        var tr = document.createElement('tr');
                        addCellWithText(tr, data.stops[i].name);
                        route_table.appendChild(tr);
                    }
                }).fail(fail_ajax);
            }}(data.routes[i].id, tr));
            */
			
            times_lines.appendChild(tr);
			
            for(var j = 0, jl = data.routes[i].alerts.length; j < jl; j++) {
                addParaWithText(
                    times_alerts,
                    'Line ' +  data.routes[i].name + ': '
                        + data.routes[i].alerts[j]
                );
            }
        }
		
        startTimer(new Date());
		
        times_timer = setTimeout(function(){ loadTimes(); }, ttss_refresh);
    }).fail(fail_ajax);
}

function declinate(num, singular, plural) {
    if(num == 1) return num + ' ' + singular;
    return num + ' ' + plural;
}

function startTimer(date) {
    if(date) {
        setText(refresh_text, 'Last refreshed: just now')
        refresh_time = date;
    }
    if(!refresh_time) return;
    if(refresh_timer) clearInterval(refresh_timer);
	
    var now = new Date();
    var ms = now.getTime() - refresh_time.getTime();
	
    var interval = 1000;
    if(ms >= 120000) interval = 60000;
	
    refresh_timer = setInterval(function() {
        var now = new Date();
        var ms = now.getTime() - refresh_time.getTime();
		
        if(ms >= 120000) {
            setText(refresh_text, 'Last refreshed: '
                + declinate(Math.floor(ms / 60000), 'minute ago', 'minutes ago'));
            startTimer();
        } else {
            setText(refresh_text, 'Last refreshed: '
                + declinate(Math.floor(ms / 1000), 'second ago', 'seconds ago'));
        }
    }, interval);
}

function init() {
    if(!window.jQuery) {
        fail('Required JavaScript jQuery library failed to load. You may try refreshing the page.');
        return;
    }
	
    $.ajaxSetup({
        dataType: 'json',
        timeout: 3000,
    });
	
    stop_name.addEventListener('input', function(e) {
        if(!stop_name.value) return;
        if(stop_name_autocomplete_xhr) stop_name_autocomplete_xhr.abort();
		
        stop_name_autocomplete_xhr = $.get(
            ttss_base + '/lookup/autocomplete/json'
                + '?query=' + encodeURIComponent(stop_name.value)
        ).done(function(data) {
            deleteChildren(stop_name_autocomplete);
            for(var i = 1, il = data.length; i < il; i++) {
                var opt = document.createElement('option');
                opt.value = data[i].id;
                opt.appendChild(document.createTextNode(data[i].name));
                stop_name_autocomplete.appendChild(opt);
            }
			
            if(!stop_id) setText(refresh_text, 'Select the stop and click "Go"');
        }).fail(fail_ajax);
    });
	
    setText(refresh_text, 'Enter the stop name to begin');
	
    stop_name_form.addEventListener('submit', function(e) {
        e.preventDefault();
        if(!stop_name_autocomplete.value) return;
        stop_id = stop_name_autocomplete.value;
        loadTimes(stop_id, true);
    });
	
    refresh_button.addEventListener('click', function(e) {
        loadTimes(stop_id);
    });
	
    alert_close.addEventListener('click', function(e) {
        alert.style.display = 'none';
    });
}

init();

			@@ -1,18 +1,3 @@
			<!--
			URLs:

			MODE=arrival,departure

			http://www.ttss.krakow.pl

			/internetservice/services/passageInfo/stopPassages/stop?stop=84&mode=MODE
			/internetservice/services/passageInfo/stopPassages/stopPoint?stopPoint=stopPoint&mode=MODE

			/internetservice/services/routeInfo/routeStops?routeId=

			/internetservice/services/lookup/autocomplete/nearStops/json?lat=&lon=
			/internetservice/services/lookup/autocomplete/json?query=
			-->
			<!DOCTYPE html>
			<html lang="en">
			<head>
			@@ -125,323 +110,6 @@
			</div>
			</div>
			<script src="https://code.jquery.com/jquery-3.1.1.min.js" integrity="sha384-3ceskX3iaEnIogmQchP8opvBy3Mi7Ce34nWjpBIwVTHfGYWQS9jwHDVRnpKKHJg7" crossorigin="anonymous"></script>
			<script type="text/javascript">
			//var ttss_base = 'http://www.ttss.krakow.pl/internetservice/services';
			var ttss_base = '/proxy.php';
			var ttss_refresh = 20000; // 20 seconds

			var stop_id;
			var stop_name = document.getElementById('stop-name');
			var stop_name_form = stop_name.form;
			var stop_name_autocomplete = document.getElementById('stop-name-autocomplete');
			var stop_name_autocomplete_xhr;

			var times_xhr;
			var times_timer;
			var times_stop_name = document.getElementById('times-stop-name');
			var times_alerts = document.getElementById('times-alerts');
			var times_table = document.getElementById('times-table');
			var times_lines = document.getElementById('times-lines');

			/*
			var route_xhr;
			var route_line = document.getElementById('route-line');
			var route_table = document.getElementById('route-table');
			*/

			var refresh_button = document.getElementById('refresh');
			var refresh_text = document.getElementById('refresh-text');
			var refresh_time;
			var refresh_timer;

			var alert = document.getElementById('alert');
			var alert_text = document.getElementById('alert-text');
			var alert_close = document.getElementById('alert-close');

			function parseStatus(status) {
			switch(status.status) {
			case 'STOPPING':
			return '<<<';
			case 'PREDICTED':
			if(status.actualRelativeTime <= 0)
			return '<<<';
			if(status.actualRelativeTime >= 60)
			return Math.floor(status.actualRelativeTime / 60) + ' min';
			return status.actualRelativeTime + ' s';
			case 'DEPARTED':
			return Math.floor(-status.actualRelativeTime / 60) + ' min ago';
			default:
			return status.mixedTime;
			}
			}

			function parseTime(date, time) {
			var result = new Date(date.getFullYear(), date.getMonth(), date.getDay());
			var time_split = time.split(':');
			result.setHours(time_split[0]);
			result.setMinutes(time_split[1]);

			if(result.getTime() - date.getTime() > 72000000) {
			result.setTime(result.getTime() - 86400000);
			}

			if(date.getTime() - result.getTime() > 72000000) {
			result.setTime(result.getTime() + 86400000);
			}

			return result;
			}

			function parseDelay(status) {
			if(!status.actualTime) return '?';
			if(!status.plannedTime) return '?';

			var now = new Date();
			var actual = parseTime(now, status.actualTime);
			var planned = parseTime(now, status.plannedTime);

			return ((actual.getTime() - planned.getTime()) / 1000 / 60) + ' min';
			}

			function deleteChildren(element) {
			while(element.lastChild) element.removeChild(element.lastChild);
			}

			function addElementWithText(parent, element, text) {
			var elem = document.createElement(element);
			elem.appendChild(document.createTextNode(text));
			parent.appendChild(elem);
			return elem;
			}

			function addCellWithText(parent, text) {
			addElementWithText(parent, 'td', text);
			}

			function addParaWithText(parent, text) {
			addElementWithText(parent, 'p', text);
			}

			function setText(element, text) {
			deleteChildren(element);
			element.appendChild(document.createTextNode(text));
			}

			function fail(message, more) {
			if(refresh_timer) clearInterval(refresh_timer);
			if(times_timer) clearTimeout(times_timer);

			setText(alert_text, message);
			alert.style.display = 'block';

			console.log(message + ' More details follow.');
			if(more) console.log(more);
			}

			function fail_ajax(data) {
			// abort() is not a failure
			if(data.readyState == 0 && data.statusText == 'abort') return;

			if(data.status == 0) {
			fail('Request failed - please check your network connectivity.', data);
			} else if (data.statusText) {
			fail('Internet request failed with error: ' + data.statusText + '.', data);
			} else {
			fail('Internet request failed.', data);
			}
			}

			function loadTimes(stopId = null, clearRoute = false) {
			if(!stopId) stopId = stop_id;
			if(!stopId) return;

			if(times_timer) clearTimeout(times_timer);
			if(times_xhr) times_xhr.abort();

			refresh_button.removeAttribute('disabled');

			times_xhr = $.get(
			ttss_base + '/passageInfo/stopPassages/stop'
			+ '?stop=' + encodeURIComponent(stopId)
			+ '&mode=departure'
			).done(function(data) {
			setText(times_stop_name, data.stopName);
			deleteChildren(times_alerts);
			deleteChildren(times_table);
			deleteChildren(times_lines);
			/*
			if(clearRoute) {
			deleteChildren(route_line);
			deleteChildren(route_table);
			}
			*/

			for(var i = 0, il = data.generalAlerts.length; i < il; i++) {
			addParaWithText(times_alerts, data.generalAlerts[i]);
			}

			for(var i = 0, il = data.old.length; i < il; i++) {
			var tr = document.createElement('tr');
			addCellWithText(tr, data.old[i].patternText);
			addCellWithText(tr, data.old[i].direction);
			var status = parseStatus(data.old[i]);
			addCellWithText(tr, status);
			addCellWithText(tr, '');

			tr.className = 'active';
			times_table.appendChild(tr);
			}

			for(var i = 0, il = data.actual.length; i < il; i++) {
			var tr = document.createElement('tr');
			addCellWithText(tr, data.actual[i].patternText);
			addCellWithText(tr, data.actual[i].direction);
			var status = parseStatus(data.actual[i]);
			addCellWithText(tr, status);
			var delay = parseDelay(data.actual[i]);
			addCellWithText(tr, delay);

			if(status == '<<<') tr.className = 'success';
			else if(parseInt(delay) > 9) tr.className = 'danger';
			else if(parseInt(delay) > 3) tr.className = 'warning';
			times_table.appendChild(tr);
			}

			for(var i = 0, il = data.routes.length; i < il; i++) {
			var tr = document.createElement('tr');
			addCellWithText(tr, data.routes[i].name);
			addCellWithText(tr, data.routes[i].directions.join(' - '));
			addCellWithText(tr, data.routes[i].authority);

			/*
			tr.addEventListener('click', function(routeId, routeTr){ return function(e) {
			var trs = tr.parentNode;
			for(var i = 0; i < trs.childNodes.length; i++) {
			trs.childNodes[i].removeAttribute('class');
			}
			routeTr.className = 'warning';

			if(route_xhr) route_xhr.abort();
			route_xhr = $.get(
			ttss_base + '/routeInfo/routeStops'
			+ '?routeId=' + encodeURIComponent(routeId)
			).done(function(data) {
			setText(route_line, data.route.name + ': '
			+ data.route.directions.join(' - '));
			deleteChildren(route_table);

			routeTr.className = 'success';

			for(var i = 0, il = data.stops.length; i < il; i++) {
			var tr = document.createElement('tr');
			addCellWithText(tr, data.stops[i].name);
			route_table.appendChild(tr);
			}
			}).fail(fail_ajax);
			}}(data.routes[i].id, tr));
			*/

			times_lines.appendChild(tr);

			for(var j = 0, jl = data.routes[i].alerts.length; j < jl; j++) {
			addParaWithText(
			times_alerts,
			'Line ' + data.routes[i].name + ': '
			+ data.routes[i].alerts[j]
			);
			}
			}

			startTimer(new Date());

			times_timer = setTimeout(function(){ loadTimes(); }, ttss_refresh);
			}).fail(fail_ajax);
			}

			function declinate(num, singular, plural) {
			if(num == 1) return num + ' ' + singular;
			return num + ' ' + plural;
			}

			function startTimer(date) {
			if(date) {
			setText(refresh_text, 'Last refreshed: just now')
			refresh_time = date;
			}
			if(!refresh_time) return;
			if(refresh_timer) clearInterval(refresh_timer);

			var now = new Date();
			var ms = now.getTime() - refresh_time.getTime();

			var interval = 1000;
			if(ms >= 120000) interval = 60000;

			refresh_timer = setInterval(function() {
			var now = new Date();
			var ms = now.getTime() - refresh_time.getTime();

			if(ms >= 120000) {
			setText(refresh_text, 'Last refreshed: '
			+ declinate(Math.floor(ms / 60000), 'minute ago', 'minutes ago'));
			startTimer();
			} else {
			setText(refresh_text, 'Last refreshed: '
			+ declinate(Math.floor(ms / 1000), 'second ago', 'seconds ago'));
			}
			}, interval);
			}

			function init() {
			if(!window.jQuery) {
			fail('Required JavaScript jQuery library failed to load. You may try refreshing the page.');
			return;
			}

			$.ajaxSetup({
			dataType: 'json',
			timeout: 3000,
			});

			stop_name.addEventListener('input', function(e) {
			if(!stop_name.value) return;
			if(stop_name_autocomplete_xhr) stop_name_autocomplete_xhr.abort();

			stop_name_autocomplete_xhr = $.get(
			ttss_base + '/lookup/autocomplete/json'
			+ '?query=' + encodeURIComponent(stop_name.value)
			).done(function(data) {
			deleteChildren(stop_name_autocomplete);
			for(var i = 1, il = data.length; i < il; i++) {
			var opt = document.createElement('option');
			opt.value = data[i].id;
			opt.appendChild(document.createTextNode(data[i].name));
			stop_name_autocomplete.appendChild(opt);
			}

			if(!stop_id) setText(refresh_text, 'Select the stop and click "Go"');
			}).fail(fail_ajax);
			});

			setText(refresh_text, 'Enter the stop name to begin');

			stop_name_form.addEventListener('submit', function(e) {
			e.preventDefault();
			if(!stop_name_autocomplete.value) return;
			stop_id = stop_name_autocomplete.value;
			loadTimes(stop_id, true);
			});

			refresh_button.addEventListener('click', function(e) {
			loadTimes(stop_id);
			});

			alert_close.addEventListener('click', function(e) {
			alert.style.display = 'none';
			});
			}

			init();
			</script>
			<script type="text/javascript" src="index.js"></script>
			</body>
			</html>

New file
			@@ -0,0 +1,316 @@
			//var ttss_base = 'http://www.ttss.krakow.pl/internetservice/services';
			var ttss_base = '/proxy.php';
			var ttss_refresh = 20000; // 20 seconds

			var stop_id;
			var stop_name = document.getElementById('stop-name');
			var stop_name_form = stop_name.form;
			var stop_name_autocomplete = document.getElementById('stop-name-autocomplete');
			var stop_name_autocomplete_xhr;

			var times_xhr;
			var times_timer;
			var times_stop_name = document.getElementById('times-stop-name');
			var times_alerts = document.getElementById('times-alerts');
			var times_table = document.getElementById('times-table');
			var times_lines = document.getElementById('times-lines');

			/*
			var route_xhr;
			var route_line = document.getElementById('route-line');
			var route_table = document.getElementById('route-table');
			*/

			var refresh_button = document.getElementById('refresh');
			var refresh_text = document.getElementById('refresh-text');
			var refresh_time;
			var refresh_timer;

			var alert = document.getElementById('alert');
			var alert_text = document.getElementById('alert-text');
			var alert_close = document.getElementById('alert-close');

			function parseStatus(status) {
			switch(status.status) {
			case 'STOPPING':
			return '<<<';
			case 'PREDICTED':
			if(status.actualRelativeTime <= 0)
			return '<<<';
			if(status.actualRelativeTime >= 60)
			return Math.floor(status.actualRelativeTime / 60) + ' min';
			return status.actualRelativeTime + ' s';
			case 'DEPARTED':
			return Math.floor(-status.actualRelativeTime / 60) + ' min ago';
			default:
			return status.mixedTime;
			}
			}

			function parseTime(date, time) {
			var result = new Date(date.getFullYear(), date.getMonth(), date.getDay());
			var time_split = time.split(':');
			result.setHours(time_split[0]);
			result.setMinutes(time_split[1]);

			if(result.getTime() - date.getTime() > 72000000) {
			result.setTime(result.getTime() - 86400000);
			}

			if(date.getTime() - result.getTime() > 72000000) {
			result.setTime(result.getTime() + 86400000);
			}

			return result;
			}

			function parseDelay(status) {
			if(!status.actualTime) return '?';
			if(!status.plannedTime) return '?';

			var now = new Date();
			var actual = parseTime(now, status.actualTime);
			var planned = parseTime(now, status.plannedTime);

			return ((actual.getTime() - planned.getTime()) / 1000 / 60) + ' min';
			}

			function deleteChildren(element) {
			while(element.lastChild) element.removeChild(element.lastChild);
			}

			function addElementWithText(parent, element, text) {
			var elem = document.createElement(element);
			elem.appendChild(document.createTextNode(text));
			parent.appendChild(elem);
			return elem;
			}

			function addCellWithText(parent, text) {
			addElementWithText(parent, 'td', text);
			}

			function addParaWithText(parent, text) {
			addElementWithText(parent, 'p', text);
			}

			function setText(element, text) {
			deleteChildren(element);
			element.appendChild(document.createTextNode(text));
			}

			function fail(message, more) {
			if(refresh_timer) clearInterval(refresh_timer);
			if(times_timer) clearTimeout(times_timer);

			setText(alert_text, message);
			alert.style.display = 'block';

			console.log(message + ' More details follow.');
			if(more) console.log(more);
			}

			function fail_ajax(data) {
			// abort() is not a failure
			if(data.readyState == 0 && data.statusText == 'abort') return;

			if(data.status == 0) {
			fail('Request failed - please check your network connectivity.', data);
			} else if (data.statusText) {
			fail('Internet request failed with error: ' + data.statusText + '.', data);
			} else {
			fail('Internet request failed.', data);
			}
			}

			function loadTimes(stopId = null, clearRoute = false) {
			if(!stopId) stopId = stop_id;
			if(!stopId) return;

			if(times_timer) clearTimeout(times_timer);
			if(times_xhr) times_xhr.abort();

			refresh_button.removeAttribute('disabled');

			times_xhr = $.get(
			ttss_base + '/passageInfo/stopPassages/stop'
			+ '?stop=' + encodeURIComponent(stopId)
			+ '&mode=departure'
			).done(function(data) {
			setText(times_stop_name, data.stopName);
			deleteChildren(times_alerts);
			deleteChildren(times_table);
			deleteChildren(times_lines);
			/*
			if(clearRoute) {
			deleteChildren(route_line);
			deleteChildren(route_table);
			}
			*/

			for(var i = 0, il = data.generalAlerts.length; i < il; i++) {
			addParaWithText(times_alerts, data.generalAlerts[i]);
			}

			for(var i = 0, il = data.old.length; i < il; i++) {
			var tr = document.createElement('tr');
			addCellWithText(tr, data.old[i].patternText);
			addCellWithText(tr, data.old[i].direction);
			var status = parseStatus(data.old[i]);
			addCellWithText(tr, status);
			addCellWithText(tr, '');

			tr.className = 'active';
			times_table.appendChild(tr);
			}

			for(var i = 0, il = data.actual.length; i < il; i++) {
			var tr = document.createElement('tr');
			addCellWithText(tr, data.actual[i].patternText);
			addCellWithText(tr, data.actual[i].direction);
			var status = parseStatus(data.actual[i]);
			addCellWithText(tr, status);
			var delay = parseDelay(data.actual[i]);
			addCellWithText(tr, delay);

			if(status == '<<<') tr.className = 'success';
			else if(parseInt(delay) > 9) tr.className = 'danger';
			else if(parseInt(delay) > 3) tr.className = 'warning';
			times_table.appendChild(tr);
			}

			for(var i = 0, il = data.routes.length; i < il; i++) {
			var tr = document.createElement('tr');
			addCellWithText(tr, data.routes[i].name);
			addCellWithText(tr, data.routes[i].directions.join(' - '));
			addCellWithText(tr, data.routes[i].authority);

			/*
			tr.addEventListener('click', function(routeId, routeTr){ return function(e) {
			var trs = tr.parentNode;
			for(var i = 0; i < trs.childNodes.length; i++) {
			trs.childNodes[i].removeAttribute('class');
			}
			routeTr.className = 'warning';

			if(route_xhr) route_xhr.abort();
			route_xhr = $.get(
			ttss_base + '/routeInfo/routeStops'
			+ '?routeId=' + encodeURIComponent(routeId)
			).done(function(data) {
			setText(route_line, data.route.name + ': '
			+ data.route.directions.join(' - '));
			deleteChildren(route_table);

			routeTr.className = 'success';

			for(var i = 0, il = data.stops.length; i < il; i++) {
			var tr = document.createElement('tr');
			addCellWithText(tr, data.stops[i].name);
			route_table.appendChild(tr);
			}
			}).fail(fail_ajax);
			}}(data.routes[i].id, tr));
			*/

			times_lines.appendChild(tr);

			for(var j = 0, jl = data.routes[i].alerts.length; j < jl; j++) {
			addParaWithText(
			times_alerts,
			'Line ' + data.routes[i].name + ': '
			+ data.routes[i].alerts[j]
			);
			}
			}

			startTimer(new Date());

			times_timer = setTimeout(function(){ loadTimes(); }, ttss_refresh);
			}).fail(fail_ajax);
			}

			function declinate(num, singular, plural) {
			if(num == 1) return num + ' ' + singular;
			return num + ' ' + plural;
			}

			function startTimer(date) {
			if(date) {
			setText(refresh_text, 'Last refreshed: just now')
			refresh_time = date;
			}
			if(!refresh_time) return;
			if(refresh_timer) clearInterval(refresh_timer);

			var now = new Date();
			var ms = now.getTime() - refresh_time.getTime();

			var interval = 1000;
			if(ms >= 120000) interval = 60000;

			refresh_timer = setInterval(function() {
			var now = new Date();
			var ms = now.getTime() - refresh_time.getTime();

			if(ms >= 120000) {
			setText(refresh_text, 'Last refreshed: '
			+ declinate(Math.floor(ms / 60000), 'minute ago', 'minutes ago'));
			startTimer();
			} else {
			setText(refresh_text, 'Last refreshed: '
			+ declinate(Math.floor(ms / 1000), 'second ago', 'seconds ago'));
			}
			}, interval);
			}

			function init() {
			if(!window.jQuery) {
			fail('Required JavaScript jQuery library failed to load. You may try refreshing the page.');
			return;
			}

			$.ajaxSetup({
			dataType: 'json',
			timeout: 3000,
			});

			stop_name.addEventListener('input', function(e) {
			if(!stop_name.value) return;
			if(stop_name_autocomplete_xhr) stop_name_autocomplete_xhr.abort();

			stop_name_autocomplete_xhr = $.get(
			ttss_base + '/lookup/autocomplete/json'
			+ '?query=' + encodeURIComponent(stop_name.value)
			).done(function(data) {
			deleteChildren(stop_name_autocomplete);
			for(var i = 1, il = data.length; i < il; i++) {
			var opt = document.createElement('option');
			opt.value = data[i].id;
			opt.appendChild(document.createTextNode(data[i].name));
			stop_name_autocomplete.appendChild(opt);
			}

			if(!stop_id) setText(refresh_text, 'Select the stop and click "Go"');
			}).fail(fail_ajax);
			});

			setText(refresh_text, 'Enter the stop name to begin');

			stop_name_form.addEventListener('submit', function(e) {
			e.preventDefault();
			if(!stop_name_autocomplete.value) return;
			stop_id = stop_name_autocomplete.value;
			loadTimes(stop_id, true);
			});

			refresh_button.addEventListener('click', function(e) {
			loadTimes(stop_id);
			});

			alert_close.addEventListener('click', function(e) {
			alert.style.display = 'none';
			});
			}

			init();