function validateSearch()
{
	if(obj.category.selectedIndex == 0)
	{
		alert("Please select the Field on which you want to Search.");
		obj.category.focus();
		return;
	}
	if(obj.keywords.value == "")
	{
		alert("Please enter the keywords you are searching for.");
		obj.keywords.focus();
		return;
	}
	if(obj.keywords.value != "")
	{
		if(obj.category.value == 1 || obj.category.value == 5)
		{
			if(isNaN(obj.keywords.value))
			{
				alert("Please enter a valid value for Search Field.\nOnly numeric values are allowed.");
				obj.keywords.focus();
				obj.keywords.select();
				return false;
			}
		}
	}
	obj.action = 'LibraryBooks.asp?opt=search';
	obj.submit();
}