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/* HAFAS BASIC - External Javascript (based on: R4 v1.9)         */
/* v1.0  created May 2002 by MB supported by Anton & Friedrich   */
/* v1.9  changed 25.09.2002 - latest R4 version                  */
/* v2.0  changed 24.10.2002 - locType can be 'LIST' or 'RADIO'   */
/* v2.1  changed 13.11.2002 - function popUp administrates also  */
/*       new style 'loc' to replace formerly function openInfo   */
/* Select stations from history-list */
function useHistory(varselect,currentLocation,selectLocType){
var index = eval("document.forms[0]."+ varselect +"select.selectedIndex;");
var text  = eval("document.forms[0]."+ varselect +"select.options[index].text;");
var type  = eval("document.forms[0]."+ varselect +"select.options[index].value;");
if(type=="x")
{eval("document.forms[0]."+ varselect +"select.options[0].selected=true;");}
else
{
/* Set Location Name */
eval("document.forms[0].REQ0JourneyStops"+currentLocation+"G.value = text;");
if(type==7) var ttc = 0; else if(type==1) var ttc = 1; else
if(type==2) var ttc = 2; else if(type==4) var ttc = 3;
//var test = eval("document.forms[0].REQ0JourneyStops"+currentLocation+"A.length";);
//alert(test);
if(selectLocType == "LIST")
eval("document.forms[0].REQ0JourneyStops"+currentLocation+"A.selectedIndex = ttc;");
else if(selectLocType == "RADIO")
eval("document.forms[0].REQ0JourneyStops"+currentLocation+"A[ttc].checked = true;");
}
/* Reset select list*/
eval("document.forms[0]."+ varselect +"select.selectedIndex = 0;");
}
/* Link to open a popup-window with any content */
function popUp(url,windowname,style)
{
var standard = "top=20,left=200,resizable=no,status=no,toolbar=no,menubar=no,location=no";
if (style=="pro" || style=="int" || style=="sef") var size = ",scrollbars=yes,width=600,height=500";
else if (style=="poi") var size = ",scrollbars=yes,width=500,height=480";
else if (style=="pri") var size = ",scrollbars=yes,width=685,height=600";
else if (style=="cms") var size = ",scrollbars=yes,width=500,height=400";
else if (style=="loc") var size = ",scrollbars=no,width=305,height=355";
newwin = window.open(url,windowname,standard+""+size);
newwin.focus(self);
}
/* Show Calendar or Servicedays in Popup */
function openCalendar(url,windowname,journeystatus){
var standard = "scrollbars=no,resizable=no,status=no,toolbar=no,menubar=no,location=no";
if (windowname=="Verkehrstage")
{var size = ",width=320,height=420";} else {var size = ",width=320,height=360";}
newwin = window.open(url,windowname+""+journeystatus,standard+""+size);
newwin.creator = self;
}
/* Set Date by JavaScript */
function getjsDate(type){
var ndate = new Date();
var t = ndate.getDate();
var m = 1+(1*ndate.getMonth());
var g = "g"+ndate.getYear();
var j = g.substring(3,5);
if(t<10) t = "0"+t;
if(m<10) m = "0"+m;
if(j<10) j = "0"+1*j;
if(type=="full")
{var date = t+"."+m+"."+j; return date;}
else
{var date = new Array(t,m,j); return date;}
}
function checkWeekday(count,journeyType,returnDateOnly){
var getcDate = eval("document.formular.REQ"+journeyType+"JourneyDate.value.toLowerCase();");
if(getcDate == ""){var nix = 0;} else
if((getcDate.length > 2) || (getcDate.indexOf("+")!= -1)) /* Abfrage auf '+' ben&#246;tigt ??? */
{changeDate(count,journeyType,returnDateOnly);}
else
{doWeekday(journeyType,getcDate,returnDateOnly);}
}
function useOutwardDate(wDay)
{
//alert("WIP");
var getcDate = eval("document.formular.REQ0JourneyDate.value.toLowerCase();");
var reg = eval("/^ *("+wDay+")\, */");
var cDate = getcDate.replace(reg,"");
//var date = cDate.split(".");
var t = (cDate.substring(0,cDate.indexOf(".")));
var m = (cDate.substring((cDate.indexOf(".")+1),cDate.lastIndexOf(".")));
var j = (cDate.substring((cDate.lastIndexOf(".")+1),cDate.length));
var date = new Array(t,m,j);
return date;
}
function doWeekday(journeyType,getcDate,returnDateOnly){
var wDayOri = eval("document.formular.wDayExt"+journeyType+".value;");
var wDay = eval("document.formular.wDayExt"+journeyType+".value.toLowerCase();");
if(journeyType == 0 && returnDateOnly == "yes")
{var dateField = getjsDate('field');}
else if(journeyType == 1 && returnDateOnly == "yes")
{var dateField = useOutwardDate(wDay);}
else /* if(journeyType == 1 && returnDateOnly == "no") */
{var dateField = getjsDate('field');}
var reg = eval("/^ *("+wDay+") */");
var test = getcDate.match(reg);
if(test!=null)
{
var days = getDaysSince1980((1*("20"+dateField[2])),(1*dateField[1]),(1*dateField[0]));
var cwd = (wDay.substr((3*(1*days%7)),2));
var nwd = test[0];
var nwdidx  = (wDay.indexOf(test[0])/3);
var cwdidx  = (wDay.indexOf(cwd)/3);
if(nwdidx < cwdidx)
{nwdidx = nwdidx + 7 - cwdidx;}
else
{nwdidx = nwdidx - cwdidx;}
var newDay = nwdidx;
var gDate = gregDate(1*newDay+1*(getDaysSince1980((1*("20"+dateField[2])),(1*dateField[1]),(1*dateField[0]))));
var days = (1*+newDay+1*getDaysSince1980((1*("20"+dateField[2])),(1*dateField[1]),(1*dateField[0])));
setNewDate(journeyType,gDate,getcDate,wDayOri,days);
}
}
/* Get and Calculate new date */
function changeDate(count,journeyType,returnDateOnly){
var wDay = eval("document.formular.wDayExt"+journeyType+".value;");
var getcDate = eval("document.formular.REQ"+journeyType+"JourneyDate.value;");
var reg = eval("/^ *("+wDay+")\, */");
if(getcDate=="" && journeyType==1 && returnDateOnly=="no")  {var getcDate = getjsDate('full');}
if(getcDate=="" && journeyType==1 && returnDateOnly=="yes") {var getcDate = eval("document.formular.REQ0JourneyDate.value;");}
var cDate = getcDate.replace(reg,"");
var ctg = 1*(cDate.substring(0,cDate.indexOf(".")));
var cmt = 1*(cDate.substring((cDate.indexOf(".")+1),cDate.lastIndexOf(".")));
var cjr = (cDate.substring((cDate.lastIndexOf(".")+1),cDate.length));
if(ctg=="" || cmt=="" || cjr=="")
{/* NIX */}
else
{
if(cjr.length==4){cjr = cjr.substring(2,4);};
var gDate = gregDate(1*count+1*(getDaysSince1980((1*("20"+cjr)),cmt,ctg)));
var days = (1*count+1*(getDaysSince1980((1*("20"+cjr)),cmt,ctg)));
setNewDate(journeyType,gDate,cDate,wDay,days);
}
}
function setNewDate(journeyType,gDate,cDate,wDay,days)
{
var nwd = (wDay.substr((3*(1*days%7)),2));
if(gDate[0]<10){gDate[0]="0"+gDate[0];}
if(gDate[1]<10){gDate[1]="0"+gDate[1];}
var nDate = nwd+", "+gDate[0]+"."+gDate[1]+"."+gDate[2];
if(nDate.indexOf("NaN")!=-1) var nDate = cDate;
eval("document.formular.REQ"+journeyType+"JourneyDate.value =\""+nDate+"\";");
}
function getDaysSince1980(y, m, d){
var daysInMonth = new Array(0,31,59,90,120,151,181,212,243,273,304,334);
var returnDays = (y-1980)*365;
returnDays    += (y-1980+3)/4;
returnDays    += daysInMonth[m-1];
if(m>2 && isLeapYear(y)==true) returnDays ++;
returnDays += d;
returnDays = parseInt(returnDays);
return returnDays;
}
function isLeapYear(y){if((y%4)==0 && (y%100)!=0 || (y%400)==0) return true;}
function gregDate(daysSince1980){
var daysSince1980 = parseInt(daysSince1980);
var daysInMonth = new Array(0,31,59,90,120,151,181,212,243,273,304,334);
var daysInYear = 366;
var years      = 0;
var february_29;
var n = 11;
if(daysSince1980 < 0) daysSince1980 = 0;
while(daysSince1980> daysInYear){
years ++;
daysSince1980 -= daysInYear;
if((years%4)==0) {daysInYear = 366;} else {daysInYear = 365;}
}
if((years%4)==0 && daysSince1980>=60)
{february_29 = true; daysSince1980 --;} else
{february_29 = false;}
while(n>0 && daysInMonth[n]>=daysSince1980) n--;
if(february_29==true && daysSince1980 == 59) daysSince1980 ++;
var d = (daysSince1980-daysInMonth[n]);
var m = n+1;
var ty = (years + 1980).toString();
var y = ty.substring(2,4);
var gDate = new Array(d,m,y);
return gDate;
}

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