function ReplacePic(aDest, aSrc, aUrl)
{
	if (aSrc) { aDest.src=aSrc; }
	if (aUrl) { Redir(aUrl); }
}

function Redir(aUrl)
{
  window.location = aUrl;
}

function openSimpleCenterWindow(aPage, aW, aH, Options)
{
  var Opt = Options || '';
  var presWind = null;
  var wn = Math.random() * 100;
  wn = Math.round(wn);
  if (Opt == '') { 
    Opt = "resizable=0,toolbar=0,status=0,dependent=1,";
  } else if (Opt == 'none') {
    Opt = "resizable=yes,toolbar=yes,status=yes,dependent=0,";
  } else {
    Opt = Opt + ',';
  }
  var cX = (screen.availWidth - aW) / 2;
  var cY = (screen.availHeight - aH) / 2;
  presWind=window.open("","presWind" + wn,Opt+"width="+aW+",height="+aH);
  presWind.location=aPage;
  with (presWind) {
    moveTo(cX, cY);
  }
  return presWind;
}

function helpWindow(aPage) {
var aW = 500;
var aH = 300;
var cY = screen.availTop;
var cX = screen.availWidth - aW - 10;
helpWin = window.open('','helpWin','width='+aW+',height='+aH+',scrollbars=yes,toolbar=no,menubar=no,status=no,dependent=yes');
helpWin.location = aPage;
helpWin.moveTo(cX,cY);
helpWin.focus();
}

//==== getShortDate ====
function getShortDate(aDate) {
var d = aDate || new Date();
var dd,mm,yy;
var strDate = new String();

	dd= d.getDate();
	mm= d.getMonth() + 1;
	yy= d.getFullYear();
	
	strDate = ((dd<10) ? '0' : '') + dd+'/';
	strDate = strDate.concat( ((mm<10) ? '0' : '') + mm + '/' + yy);
	return strDate;
}


//==== DATE VALIDATION ====
function check_date(field){
var checkstr = "0123456789";
var DateField = field;
var Datevalue = "";
var DateTemp = "";
var seperator = "/";
var day;
var month;
var year;
var leap = 0;
var err = 0;
var i;
   err = 0;
   DateValue = DateField.value;
   /* Delete all chars except 0..9 */
   for (i = 0; i < DateValue.length; i++) {
	  if (checkstr.indexOf(DateValue.substr(i,1)) >= 0) {
	     DateTemp = DateTemp + DateValue.substr(i,1);
	  }
   }
   DateValue = DateTemp;
   /* Always change date to 8 digits - string*/
   /* if year is entered as 2-digit / always assume 20xx */
   if (DateValue.length == 6) {
      DateValue = DateValue.substr(0,4) + '20' + DateValue.substr(4,2); }
   if (DateValue.length != 8) {
      err = 19;}
   /* year is wrong if year = 0000 */
   year = DateValue.substr(4,4);
   if (year == 0) {
      err = 20;
   }
   /* Validation of month*/
   month = DateValue.substr(2,2);
   if ((month < 1) || (month > 12)) {
      err = 21;
   }
   /* Validation of day*/
   day = DateValue.substr(0,2);
   if (day < 1) {
     err = 22;
   }
   /* Validation leap-year / february / day */
   if ((year % 4 == 0) || (year % 100 == 0) || (year % 400 == 0)) {
      leap = 1;
   }
   if ((month == 2) && (leap == 1) && (day > 29)) {
      err = 23;
   }
   if ((month == 2) && (leap != 1) && (day > 28)) {
      err = 24;
   }
   /* Validation of other months */
   if ((day > 31) && ((month == "01") || (month == "03") || (month == "05") || (month == "07") || (month == "08") || (month == "10") || (month == "12"))) {
      err = 25;
   }
   if ((day > 30) && ((month == "04") || (month == "06") || (month == "09") || (month == "11"))) {
      err = 26;
   }
   /* if 00 ist entered, no error, deleting the entry */
   if ((day == 0) && (month == 0) && (year == 00)) {
      err = 0; day = ""; month = ""; year = ""; seperator = "";
   }
   /* if no error, write the completed date to Input-Field (e.g. 13.12.2001) */
   if (err == 0) {
      DateField.value = day + seperator + month + seperator + year;
   }
   /* Error-message if err != 0 */
   else {
      alert("Date is incorrect! Must be in the format DD/MM/YYYY");
      DateField.select();
	  DateField.focus();
   }
}