function checkDateOrder()
	{		
		var from_date_value = document.getElementById('search_form').from_date.value;
		var to_date_value = document.getElementById('search_form').to_date.value;

		if(isDate(from_date_value) && isDate(to_date_value))
		{		
			if ( new Date(from_date_value) < new Date(to_date_value) )
			{
				return true;
			}
			else
			{
				alert ("Start Date Must be less than End Date");
				return false;
				
			}
		}
		else
			return false;	
		
	}
	

	var dtCh= "/";
	var minYear=1900;
	var maxYear=2100;
	
	function isInteger(s){
		var i;
		for (i = 0; i < s.length; i++){   
			// Check that current character is number.
			var c = s.charAt(i);
			if (((c < "0") || (c > "9"))) return false;
		}
		// All characters are numbers.
		return true;
	}
	
	function stripCharsInBag(s, bag){
		var i;
		var returnString = "";
		// Search through string's characters one by one.
		// If character is not in bag, append to returnString.
		for (i = 0; i < s.length; i++){   
			var c = s.charAt(i);
			if (bag.indexOf(c) == -1) returnString += c;
		}
		return returnString;
	}
	
	function daysInFebruary (year){
		// February has 29 days in any year evenly divisible by four,
		// EXCEPT for centurial years which are not also divisible by 400.
		return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
	}
	function DaysArray(n) {
		for (var i = 1; i <= n; i++) {
			this[i] = 31
			if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
			if (i==2) {this[i] = 29}
	   } 
	   return this
	}
	
	function isDate(dtStr){
		var daysInMonth = DaysArray(12)
		var pos1=dtStr.indexOf(dtCh)
		var pos2=dtStr.indexOf(dtCh,pos1+1)
		var strMonth=dtStr.substring(0,pos1)
		var strDay=dtStr.substring(pos1+1,pos2)
		var strYear=dtStr.substring(pos2+1)
		strYr=strYear
		if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
		if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
		for (var i = 1; i <= 3; i++) {
			if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
		}
		month=parseInt(strMonth)
		day=parseInt(strDay)
		year=parseInt(strYr)
		if (pos1==-1 || pos2==-1){
			alert("The date format should be : mm/dd/yyyy")
			return false
		}
		if (strMonth.length<1 || month<1 || month>12){
			alert("Please enter a valid month")
			return false
		}
		if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
			alert("Please enter a valid day")
			return false
		}
		if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
			alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear)
			return false
		}
		if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
			alert("Please enter a valid date")
			return false
		}
	return true
	}
	
	function ValidateForm(){
		var dt=document.frmSample.txtDate
		if (isDate(dt.value)==false){
			dt.focus()
			return false
		}
		return true
	 }

	

	function unCheckAll(name)
	{
		document.getElementById(name).checked = false;
	}	
	
	function showHideSeasonsDates()
	{
		
		
		
		if (document.getElementById('search_form').all_rate_seasons[0].checked) //if all seasons chosen hide others
		{
			showSpecificDateOptions();		
		}
		else
		if (document.getElementById('search_form').all_rate_seasons[1].checked) //if seasons chosen hide others
		{
			showSeasonsOptions();			
		}	

	}	
	
	/*
	function showSeasonsOptions()
	{
			document.getElementById('seasons_info_box').style.display = 'block';
			document.getElementById('dates_info_box').style.display = 'none';			
	}
	
	function showSpecificDateOptions()
	{			
			document.getElementById('seasons_info_box').style.display = 'none';
			document.getElementById('dates_info_box').style.display = 'block';		
	}	
	*/
	
	function popUp(URL) 
	{
		day = new Date();
		id = day.getTime();
		eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=475,height=600');");
	}