// JavaScript Document
var t;
function fixheight()
{
 var maxH = 0;
 var ids = ["left_div","right_div"];
 // find the highest column
 for (var i=0; i<ids.length; i++)
 {
	var d = document.getElementById(ids[i]);
	d.style.height = ""; // important, set it to empty (mozilla, ie)
	if (d.offsetHeight > maxH) maxH = d.offsetHeight;
 }
 // set them all to be that height
 for (var i=0; i<ids.length; i++)
 {
  var d=document.getElementById(ids[i]);
  d.style.height = maxH+"px";
 }
}

function OpenBrowserWindow(theURL, winName, features, myWidth, myHeight, isCenter) 
{ //v3.0
  if(window.screen)if(isCenter)if(isCenter=="true"){
    var myLeft = (screen.width-myWidth)/2;
    var myTop = (screen.height-myHeight)/2;
    features+=(features!='')?',':'';
    features+=',left='+myLeft+',top='+myTop+',toolbar=0,resize=0';
  }
  var d=window.open(theURL,winName,features+((features!='')?',':'')+'width='+myWidth+',height='+myHeight);
}

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;
	DateValue = DateField;

	/* 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;
		DateField = day + seperator + month + seperator + year;
		flag=0;
	}
	/* Error-message if err != 0 */
	else
	{
		alert("Date is incorrect!");
		flag=1;
//		DateField.select();
//		DateField.focus();
	}
}