function validate()
	{

//		var name=document.getElemnetById("GRCategory2");
//		var email=document.getElemnetById("GRCategory3");

		if (document.GRSubscribeForm.category3.value.length == 0)
		{
			alert("Please enter your e-mail.")
			document.GRSubscribeForm.category3.focus();
			
		}
		else if (!chkemail(document.GRSubscribeForm.category3))
		{
			alert("Please enter valid e-mail.")
			document.GRSubscribeForm.category3.focus();
			
		}
		else
		{
			window.open('freecatalog.asp?category3='+document.GRSubscribeForm.category3.value,'_blank','width=250,height=250,scrollbars=no,toolbar=no,location=no,directories=no,status=no,menubar=no,resizable=yes');
//			document.GRSubscribeForm.category2.value = document.GRSubscribeForm.txtFName.value + " " + document.GRSubscribeForm.txtLName.value;
//			document.GRSubscribeForm.submit();
			document.GRSubscribeForm.category3.value="enter your email";
			
		}
	}
function chkemail(email)
{
	var emailvalid=true;
		if (email.value.length < 5)
		{
			emailvalid=false;
		}
		else 
		{
						
			var flag = "false";
			var flag1 = "false";
			for (var i = 1; i < email.value.length; i++) 
			{
				var ch = email.value.substring(i, i + 1);
				if (ch == ".")
				{	
					flag = "true";
				}	
				if (ch == "@")
				{	
					flag1 = "true";
				}	

			}
			if (flag == "false" || flag1 == "false")
			{
				emailvalid=false;
			}
		}
		return emailvalid;
}