function checkDate(d1,d2)
	{
		var response = ""
		var oDate = d1; //YYYY-MM-DD
		//alert(oDate)
		var arrDate = oDate.split("/");//10/19/2008
		if (arrDate.length!=3)
			{
				response = "Invalid";
				return response;
			}
		var Date1 = new Date(arrDate[2], arrDate[0]-1, arrDate[1]);
		if (isNaN(Date1))
			{ 
				response = "Invalid";
				return response;
			}
		
		var oDate2 = d2; //YYYY-MM-DD
		////alert(oDate2)
		var arrDate2 = oDate2.split("/");
		if (arrDate2.length!=3)
			{
				rresponse = "Invalid";
				return response;
			}
		var Date2 = new Date(arrDate2[2], arrDate2[0]-1, arrDate2[1]);
		if (isNaN(Date2))
			{ 
				response = "Invalid";
				return response;
			}		

		//alert (Date1 + " >>> " + Date2)
		if(Date1 > Date2)
			{
				response = "true";
				return response;
			}
		else
			{
				response = "false";
				return response;
			}
	}



function hideshow(which)
{
	if (which.style.display == "")
	{
		which.style.display = "none";
	}
	else
	{
		which.style.display = "";
	}
}

function hideshow2(me, that )
{
	if (me.checked)
	{
		that.style.display = "none";
	}
	else
	{
		that.style.display = "";
	}

}

function defSelected(thisone, thatone, thatdiv)
{
	if (thisone.value != 0 && thatone[0].checked != true)
	{
		thatone[0].checked = true;
		hideshow2(thatone[0],document.getElementById(thatdiv));
	}
}

function IsNumeric(strString)
//  check for valid numeric strings	
{
	var strValidChars = "0123456789.-";
	var strChar;
	var blnResult = true;

	if (strString.length == 0) return false;

	//  test strString consists of valid characters listed above
	for (i = 0; i < strString.length && blnResult == true; i++)
	{
		strChar = strString.charAt(i);
		if (strValidChars.indexOf(strChar) == -1)
		{
			blnResult = false;
		}
	}
	return blnResult;
}

var isNN = (navigator.appName.indexOf("Netscape")!=-1);

function autoTab(input,len, e) {
  var keyCode = (isNN) ? e.which : e.keyCode; 
  var filter = (isNN) ? [0,8,9] : [0,8,9,16,17,18,37,38,39,40,46];
  if(input.value.length >= len && !containsElement(filter,keyCode)) {
    input.value = input.value.slice(0, len);
    input.form[(getIndex(input)+1) % input.form.length].focus();
  }

  function containsElement(arr, ele) {
    var found = false, index = 0;
    while(!found && index < arr.length)
    if(arr[index] == ele)
    found = true;
    else
    index++;
    return found;
  }

  function getIndex(input) {
    var index = -1, i = 0, found = false;
    while (i < input.form.length && index == -1)
    if (input.form[i] == input)index = i;
    else i++;
    return index;
  }
  return true;
}

function textCounter(field, countfield, maxlimit) {
	if (field.value.length > maxlimit) {
		field.value = field.value.substring(0, maxlimit);
	} else {
		countfield.value = maxlimit - field.value.length;
	}
}
// Title: Timestamp picker
// Description: See the demo at url
// URL: http://us.geocities.com/tspicker/
// Script featured on: http://javascriptkit.com/script/script2/timestamp.shtml
// Version: 1.0
// Date: 12-05-2001 (mm-dd-yyyy)
// Author: Denis Gritcyuk <denis@softcomplex.com>; <tspicker@yahoo.com>
// Notes: Permission given to use this script in any kind of applications if
//    header lines are left unchanged. Feel free to contact the author
//    for feature requests and/or donations

//<a href="javascript:show_calendar('document.form1.TextBox1', document.form1.TextBox1.value);"><img height="16" alt="Click Here to choose the start date" src="images/cal.gif" width="16" border="0" /></a>

function show_calendar(str_target, str_datetime) {
	var arr_months = ["January", "February", "March", "April", "May", "June",
		"July", "August", "September", "October", "November", "December"];
	var week_days = ["Su", "Mo", "Tu", "We", "Th", "Fr", "Sa"];
	var n_weekstart = 1; // day week starts from (normally 0 or 1)
	var dt_cdate=new Date();
	var dt_datetime = (str_datetime == null || str_datetime =="" ?  new Date() : str2dt(str_datetime));
	var dt_prev_month = new Date(dt_datetime);
	dt_prev_month.setMonth(dt_datetime.getMonth()-1);
	var dt_next_month = new Date(dt_datetime);
	dt_next_month.setMonth(dt_datetime.getMonth()+1);
	var dt_firstday = new Date(dt_datetime);
	dt_firstday.setDate(1);
	dt_firstday.setDate(1-(7+dt_firstday.getDay()-n_weekstart)%7);
	var dt_lastday = new Date(dt_next_month);
	dt_lastday.setDate(0);
	
	// html generation (feel free to tune it for your particular application)
	// print calendar header
	var yeaCombo="";
	yeaCombo="<select ONCHANGE=\"javascript:window.opener.show_calendar('"+str_target+"', dt2dtstr(this.options[this.selectedIndex].value,"+dt_datetime.getMonth()+","+dt_datetime.getDate()+")"+");\">";
	
	for (var b=-10; b<10; b++)
	{
	if ((dt_cdate.getFullYear()-b)==dt_datetime.getFullYear())
	yeaCombo+="<option selected=\"selected\" value=\""+(dt_cdate.getFullYear()-b)+"\">"+(dt_cdate.getFullYear()-b)+"</option>";
	else
	yeaCombo+="<option value=\""+(dt_cdate.getFullYear()-b)+"\">"+(dt_cdate.getFullYear()-b)+"</option>";
	
	}
	yeaCombo+="</select>";


	var str_buffer = new String (
		"<html>\n"+
		"<head>\n"+
		"	<title>Calendar</title>\n"+
		"</head>\n"+
		"<SCRIPT LANGUAGE=\"JAVASCRIPT\">\n"+
		"function dt2dtstr (dt_datetime,dt_month,dt_days) {\n"+
		"var dt_date=new Date();\n"+
		"dt_date.setFullYear(dt_datetime)\n"+
		"dt_date.setMonth(dt_month)\n"+
		"dt_date.setDate(dt_days)\n"+
		"return (new String (\n"+
		"(dt_date.getMonth()+1)+\"/\"+dt_date.getDate()+\"/\"+dt_date.getFullYear()));\n"+
		"}\n"+
		"</SCRIPT>\n"+
		"<body bgcolor=\"White\">\n<form>\n"+
		"<table class=\"clsOTable\" cellspacing=\"0\" border=\"0\" width=\"100%\">\n"+
		"<tr><td bgcolor=\"#4682B4\">\n"+
		"<table cellspacing=\"1\" cellpadding=\"3\" border=\"0\" width=\"100%\">\n"+
		"<tr>\n	<td bgcolor=\"#4682B4\"><a href=\"javascript:window.opener.show_calendar('"+
		str_target+"', '"+ dt2dtstr(dt_prev_month)+"');\">"+
		"<b><<</b> </a></td>\n"+
		"	<td bgcolor=\"#4682B4\" colspan=\"5\">"+
		"<font color=\"white\" face=\"tahoma, verdana\" size=\"2\">"
		+arr_months[dt_datetime.getMonth()]+"</font> "+yeaCombo+"</td>\n"+
		"	<td bgcolor=\"#4682B4\" align=\"right\"><a href=\"javascript:window.opener.show_calendar('"
		+str_target+"', '"+dt2dtstr(dt_next_month)+"');\">"+
		"<b>>></b> </a></td>\n</tr>\n"
	);

	var dt_current_day = new Date(dt_firstday);
	// print weekdays titles
	str_buffer += "<tr>\n";
	for (var n=0; n<7; n++)
		str_buffer += "	<td bgcolor=\"#87CEFA\">"+
		"<font color=\"white\" face=\"tahoma, verdana\" size=\"2\">"+
		week_days[(n_weekstart+n)%7]+"</font></td>\n";
	// print calendar table
	str_buffer += "</tr>\n";
	while (dt_current_day.getMonth() == dt_datetime.getMonth() ||
		dt_current_day.getMonth() == dt_firstday.getMonth()) {
		// print row heder
		str_buffer += "<tr>\n";
		for (var n_current_wday=0; n_current_wday<7; n_current_wday++) {
				if (dt_current_day.getDate() == dt_datetime.getDate() &&
					dt_current_day.getMonth() == dt_datetime.getMonth())
					// print current date
					str_buffer += "	<td bgcolor=\"#FFB6C1\" align=\"right\">";
				else if (dt_current_day.getDay() == 0 || dt_current_day.getDay() == 6)
					// weekend days
					str_buffer += "	<td bgcolor=\"#DBEAF5\" align=\"right\">";
				else
					// print working days of current month
					str_buffer += "	<td bgcolor=\"white\" align=\"right\">";

				if (dt_current_day.getMonth() == dt_datetime.getMonth())
					// print days of current month
					str_buffer += "<a href=\"javascript:window.opener."+str_target+
					".value='"+dt2dtstr(dt_current_day)+"'; window.close();\">"+
					"<font color=\"black\" face=\"tahoma, verdana\" size=\"2\">";
				else 
					// print days of other months
					str_buffer += "<a href=\"javascript:window.opener."+str_target+
					".value='"+dt2dtstr(dt_current_day)+"'; window.close();\">"+
					"<font color=\"gray\" face=\"tahoma, verdana\" size=\"2\">";
				str_buffer += dt_current_day.getDate()+"</font></a></td>\n";
				dt_current_day.setDate(dt_current_day.getDate()+1);
		}
		// print row footer
		str_buffer += "</tr>\n";
	}
	// print calendar footer
	str_buffer +=
		"<tr><td colspan=\"7\" bgcolor=\"#87CEFA\">"+
		"</td></tr>\n" +
		"</table>\n" +
		"</tr>\n</td>\n</table>\n</form>\n" +
		"</body>\n" +
		"</html>\n";

	var vWinCal = window.open("", "Calendar", 
		"width=200,height=250,status=no,resizable=yes,top=200,left=200");
	vWinCal.opener = self;
	var calc_doc = vWinCal.document;
	calc_doc.write (str_buffer);
	calc_doc.close();
}
// datetime parsing and formatting routimes. modify them if you wish other datetime format
function str2dt (str_datetime) {
	var re_date = /^(\d+)\/(\d+)\/(\d+)/;
	if (!re_date.exec(str_datetime))
		return alert("Invalid Datetime format: "+ str_datetime);
	
	return (new Date (RegExp.$3,RegExp.$1-1,RegExp.$2));
}
function dt2dtstr (dt_datetime) {
	return (new String (
			(dt_datetime.getMonth()+1)+"/"+dt_datetime.getDate()+"/"+dt_datetime.getFullYear()));
}
function dt2tmstr (dt_datetime) {
	return (new String (
			dt_datetime.getHours()+":"+dt_datetime.getMinutes()+":"+dt_datetime.getSeconds()));
}