<!--
/* DB Release 4 (PEP) External Javascript                      */
/* v1.0  created May 2002 by MB supported by Anton & Friedrich */
/* v1.9  changed 23.10.2002 - latest version                   */

function useHistory(varselect,currentLocation){
    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
      {var ttc = (Math.log(type)/Math.log(2));
       eval("document.forms[0].REQ0JourneyStops"+currentLocation+"G.value = text;");
       eval("document.forms[0].REQ0JourneyStops"+currentLocation+"A.selectedIndex = ttc;");
      } eval("document.forms[0]."+ varselect +"select.selectedIndex = 0;");
    }

function popUp(url,windowname,style){
    var standard = "top=20,left=200,scrollbars=yes,resizable=yes,status=no,toolbar=no,menubar=no,location=no";
    if (style=="printpreview") var size = ",width=600,height=500";
    newwin = window.open(url,windowname,standard+""+size);
    newwin.focus(self);
    }

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;
    }

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))
      {changeDate(count,journeyType,returnDateOnly);}
    else
      {doWeekday(journeyType,getcDate,returnDateOnly);}
    }

function useOutwardDate(wDay)
   {
   var getcDate = eval("document.formular.REQ0JourneyDate.value.toLowerCase();");
   var reg = eval("/^ *("+wDay+")\, */");
   var cDate = getcDate.replace(reg,"");
   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 
      {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);
      }
   }

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;
   }
   
   
function checkAll( theButton, theButtonOffset, theNum, theCheck )
{
  // find button element index
  var j = 0;
  for( var i = 0; i <= document.main.length; i++ ) {
    if( theButton == document.main.elements[i] ) {
      j = i;
      break;
    }
  }
  // set/clear all checkboxes
  var last = j+theButtonOffset+theNum;
  for( i = last-theNum; i < last; i++ ) {
    document.main.elements[i].checked = theCheck;
  }
}

function GoBack() {
    history.back();
}

function GoFwd() {
    history.forward();
}



function launchWindow( Target, UrlPath, ScriptSuffix, theWeb, theTopic ) {
  win = open( UrlPath + "/view" + ScriptSuffix + "/" + theWeb + "/" + theTopic + "?skin=plain",
              Target, "titlebar=0,width=600,height=480,resizable,scrollbars");
  if( win ) {
    win.moveTo(100,100);
    win.focus();
  }
  return false;
}


//-->