// JavaScript Document


function openwindow(type){
		
        win = window.open("indices.asp?img="+type+"","", "toolbar=no,location=no,directories=no,status=no, menubar=no,scrollbars=no,resizable=yes,copyhistory=no,width=625,height=450")
        
}


function Validate_Dates()
{

var first_date = document.forms[0].Start_Date.value;
var sec_date = document.forms[0].End_Date.value;


date_first = new Date(first_date);
date_sec = new Date(sec_date);
very_first_Date = new Date(Earliest_Date);

if(date_first > date_sec)
{

alert("Invalid Date Range Selected");
return false;
}
else if(date_first < very_first_Date)
{
alert("Data earlier to this date is not available,\n Please select 'From Date' later than " + very_first_Date.toLocaleDateString());
return false;
}
else
{

monthDiff = (date_sec.getFullYear() - date_first.getFullYear()) * 12 + (date_sec.getMonth() - date_first.getMonth());

dayDiff = (date_sec.getDate() - date_first.getDate());

TotalDiff = monthDiff + dayDiff;

if(monthDiff > 12)
{

	alert("Date Range more than 12 months, please select a lesser duration..!");
	return false;

	
}
else if(monthDiff == 12)
{

	if(dayDiff > 0)
		{
			alert("Date Range more than 12 months, please select a lesser duration..!");
			return false;
		}
	else
		return true;
	
			

}

else
	return true;
	
	
	
}


}