var schedule;var scheduleSelect=document.getElementById('schedule');var minAfter=240;var maxAfter=1440;var incAfter=10;var after;var afterSelect=document.getElementById('after');var minInterval=15;var maxInterval=120;var incInterval=15;var defaultInterval=45;var interval;var intervalSelect=document.getElementById('interval');var timeFormat;var timeFormatSelect=document.getElementById('timeformat');var mapDiv=document.getElementById('map');var om;var map;var stations;var dirColors;var schedules=[];var scheduleStatus=[];var ss_no=0,ss_fetching=1,ss_ok=2;var noBikesColor='#66ffff';var instructionsDiv=document.getElementById('instructions');var stationIcon=new GIcon();stationIcon.image='station.png';stationIcon.iconSize=new GSize(11,11);stationIcon.iconAnchor=new GPoint(5,5);stationIcon.infoWindowAnchor=new GPoint(3,7);var transferIcon=new GIcon();transferIcon.image='transfer.png';transferIcon.iconSize=new GSize(15,15);transferIcon.iconAnchor=new GPoint(7,7);transferIcon.infoWindowAnchor=new GPoint(6,7);function Setup()
{try
{if(!GBrowserIsCompatible())
{mapDiv.innerHTML='Sorry, your browser is not compatible with Google Maps.';return;}
SetLanguage(LANG_ENGLISH);instructionsDiv.innerHTML='<font size="-1">'+_mInstructions+'</font>';om=new OverlayMessage(mapDiv);map=new GMap2(mapDiv,{draggableCursor:'default'});map.addControl(new GLargeMapControl());map.addMapType(WMS_TOPO_MAP);map.addMapType(WMS_DOQ_MAP);map.addControl(new GMapTypeControl());map.addControl(new GScaleControl());map.setCenter(new GLatLng(37.80,-122.20),10);GEvent.addListener(map,'infowindowclose',PopDown);for(var hour=0;hour<=48;++hour)
scheduleStatus[hour]=ss_no;om.Set('Loading...');HttpGet('bart.xml',InitialRequestChecker);}
catch(e)
{GLog.write('Setup:\n'+Props(e));}}
function InitialRequestChecker(request)
{try
{var xmlDoc=request.responseXML.documentElement;var idLookup;var stationElements=xmlDoc.getElementsByTagName('station');stations=[];idLookup=[];for(var i=0;i<stationElements.length;++i)
{var id=stationElements[i].getAttribute('id');var name=stationElements[i].getAttribute('name');var lat=parseFloat(stationElements[i].getAttribute('lat'));var lng=parseFloat(stationElements[i].getAttribute('lng'));var xfer=stationElements[i].getAttribute('xfer');var point=new GLatLng(lat,lng);var marker=new GMarker(point,{icon:xfer=='y'?transferIcon:stationIcon,title:name});marker.name=name;marker.xfer=xfer;map.addOverlay(marker);stations.push(marker);GEvent.addListener(marker,'click',MakeCaller(PopUp,i));idLookup[id]=i;}
var lineElements=xmlDoc.getElementsByTagName('line');dirColors=[];for(var i=0;i<lineElements.length;++i)
{var dir1=lineElements[i].getAttribute('dir1');var dir2=lineElements[i].getAttribute('dir2');var color=lineElements[i].getAttribute('color');var width=lineElements[i].getAttribute('width');var stopElements=lineElements[i].getElementsByTagName('stop');dirColors[dir1]=color;dirColors[dir2]=color;var points=[];for(var j=0;j<stopElements.length;++j)
{var id=stopElements[j].getAttribute('id');var stationNum=idLookup[id];points.push(stations[stationNum].getPoint());}
map.addOverlay(new GPolyline(points,color,width,1.0));}
var now=new Date();if(now.getDay()==0||IsHoliday(now))
schedule='SU';else if(now.getDay()==6)
schedule='SA';else
schedule='WD';after=now.getHours()*60+now.getMinutes();if(now.getHours()<=2)
after+=24*60;interval=defaultInterval;timeFormat='t24';MakeSelects();om.Clear();FetchHour(Math.floor(after/60));}
catch(e)
{GLog.write('InitialRequestChecker:\n'+Props(e));}}
function ScheduleRequestChecker(request)
{try
{var xmlDoc=request.responseXML.documentElement;var hour=parseInt(xmlDoc.getAttribute('hour'));schedules[hour]=xmlDoc.getElementsByTagName('station');scheduleStatus[hour]=ss_ok;RePop();}
catch(e)
{GLog.write('ScheduleRequestChecker:\n'+Props(e));}}
function IsHoliday(now)
{var day=now.getDate();var dow=now.getDay();var month=now.getMonth();if(month==0&&day==1)
return true;if(month==4&&day>=25&&dow==1)
return true;if(month==6&&day==4)
return true;if(month==8&&day<=7&&dow==1)
return true;if(month==10&&day>=22&&day<=28&&dow==4)
return true;if(month==11&&day==25)
return true;return false;}
function MakeSelects()
{scheduleSelect[0]=new Option('Weekday','WD');scheduleSelect[1]=new Option('Saturday','SA');scheduleSelect[2]=new Option('Sunday/Holiday','SU');for(var i=0;i<scheduleSelect.length;++i)
if(scheduleSelect[i].value==schedule)
{scheduleSelect.selectedIndex=i;break;}
for(var i=minAfter,j=0;i<=maxAfter;i+=incAfter,++j)
afterSelect[j]=new Option(FormatTime24(i),i);for(var i=0;i<afterSelect.length;++i)
if(afterSelect[i].value>=after)
{afterSelect.selectedIndex=i;break;}
for(var i=minInterval,j=0;i<=maxInterval;i+=incInterval,++j)
intervalSelect[j]=new Option(i,i);for(var i=0;i<intervalSelect.length;++i)
if(intervalSelect[i].value>=interval)
{intervalSelect.selectedIndex=i;break;}
timeFormatSelect[0]=new Option('am/pm','t12');timeFormatSelect[1]=new Option('24hr','t24');for(var i=0;i<timeFormatSelect.length;++i)
if(timeFormatSelect[i].value==timeFormat)
{timeFormatSelect.selectedIndex=i;break;}}
function FormatTime24(mins)
{var h=Math.floor(mins/60);var m=mins%60;return h+':'+(m<10?'0':'')+m;}
function ParamsChanged()
{try
{schedule=scheduleSelect[scheduleSelect.selectedIndex].value;if(schedule!='WD'&&schedule!='SA'&&schedule!='SU')
schedule='WD';after=parseInt(afterSelect[afterSelect.selectedIndex].value);if(after<minAfter)after=minAfter;if(after>maxAfter)after=maxAfter;interval=parseInt(intervalSelect[intervalSelect.selectedIndex].value);if(interval<minInterval)interval=minInterval;if(interval>maxInterval)interval=maxInterval;timeFormat=timeFormatSelect[timeFormatSelect.selectedIndex].value;if(timeFormat!='t12'&&timeFormat!='t24')
timeFormat='t24';RePop();}
catch(e)
{GLog.write('ParamsChanged:\n'+Props(e));}}
var lastStation=-1;function PopUp(i)
{try
{var firstHour=Math.floor(after/60);var lastHour=Math.floor((after+interval)/60);for(var hour=firstHour;hour<=lastHour;++hour)
{if(scheduleStatus[hour]==undefined||scheduleStatus[hour]==ss_no)
{FetchHour(hour);map.closeInfoWindow();stations[i].openInfoWindowHtml('<i>Loading...</i>');lastStation=i;return;}
else if(scheduleStatus[hour]==ss_fetching)
{map.closeInfoWindow();stations[i].openInfoWindowHtml('<i>Still loading...</i>');lastStation=i;return;}}
var html;var someAntiBikes=false;var name=stations[i].name;html='<b>'+name+'</b>';if(stations[i].xfer=='y')
html+=' (transfer station)';html+='<br /><br />';var firstBoundElements=schedules[firstHour][i].getElementsByTagName('bound');for(var j=0;j<firstBoundElements.length;++j)
{var bound=firstBoundElements[j].getAttribute('bound');html+='<font size="-2">'+bound+'bound: ';var nTimes=0;for(var hour=firstHour;hour<=lastHour;++hour)
{var thisBoundElements=schedules[hour][i].getElementsByTagName('bound');var timeElements=thisBoundElements[j].getElementsByTagName('time');for(var k=0;k<timeElements.length;++k)
{var day=timeElements[k].getAttribute('wd');var mins=timeElements[k].getAttribute('m');if(day==schedule&&mins>=after&&mins<=after+interval)
{var dir=timeElements[k].getAttribute('dr');var time12=timeElements[k].getAttribute('t12');var time24=timeElements[k].getAttribute('t24');var bikes=timeElements[k].getAttribute('bk');html+='<span style="background-color: '+dirColors[dir]+';';if(bikes=='n')
{html+=' border: medium solid '+noBikesColor+';';someAntiBikes=true;}
html+='">'+(timeFormat=='t24'?time24:time12)+'</span> ';++nTimes;if(nTimes>=8)
{html+='<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;';nTimes=0;}}}}
html+='</font><br /><br />';}
if(someAntiBikes)
html+='<span style="background-color: '+noBikesColor+';">Bikes not allowed.</span>';map.closeInfoWindow();stations[i].openInfoWindowHtml(html,{maxWidth:300});lastStation=i;}
catch(e)
{GLog.write('PopUp:\n'+Props(e));}}
function FetchHour(hour)
{scheduleStatus[hour]=ss_fetching;HttpGet('schedule'+hour+'.xml',ScheduleRequestChecker);}
function RePop()
{if(lastStation!=-1)
PopUp(lastStation);}
function PopDown()
{lastStation=-1;}