function validate_form()
{
	var val=document.getElementById("site_url").value;
	if ((val=='') || (val==' '))
	{
		alert("Please Enter Valid Site URL");
		document.getElementById("site_url").focus();
		return false;
	   }
 
    var val=document.getElementById("site_title").value;
	if ((val=='') || (val==' '))
	{
		alert("Please Enter Valid Site Title");
		document.getElementById("site_title").focus();
		return false;
	   }
	
	var val=document.getElementById("rec_url").value;
	if ((val=='') || (val==' '))
	{
		alert("Please Enter Valid Reciprocal URL");
		document.getElementById("rec_url").focus();
		return false;
	   }
	
	var val=document.getElementById("name").value;
	if ((val=='') || (val==' '))
	{
		alert("Please Enter Valid Name");
		document.getElementById("name").focus();
		return false;
	   }
	
	var val=document.getElementById("emailid").value;
	if ((val=='') || (val==' '))
	{
		alert("Please Enter Valid Email-ID");
		document.getElementById("emailid").focus();
		return false;
	   }
	 
}