// JavaScript Document

function validate()
{
	
	
	var fname = document.getElementById("fname").value;
	var surname = document.getElementById("surname").value;
	var uname = document.getElementById("uname").value;
	var email = document.getElementById("email").value;
	
	var fr_name = document.getElementById("fr_name").value;
	var fr_addr = document.getElementById("fr_addr").value;
	var fr_email = document.getElementById("fr_email").value;
	var fr_tele = document.getElementById("fr_tele").value;
	
	if(fname == '' || surname == '' || uname == '' || email == '' || fr_name == '' || fr_addr == '' || fr_email == '' || fr_tele == '')
	{
		document.getElementById("err_msg").innerHTML='<font color="#D60079">* marked fields are mandatory.</font>';	
		return;
	}
	else
	{
		var flag1 = emailValidator(document.getElementById("email"));
		var flag2 = emailValidator(document.getElementById("fr_email"));
		if(flag1 == true && flag2 == true)
		{
			if(document.getElementById("email").value == document.getElementById("fr_email").value)
			{
				document.getElementById("err_msg").innerHTML='<font color="#D60079">Please check both the mail ids, It should be different.</font>';
			}
			else
			{
			document.refer_friend.submit();
			}
		}
		else
		{
			document.getElementById("err_msg").innerHTML='<font color="#D60079">Please specify valid email address.</font>';	
		}
	}
}


 function emailValidator(elem){
	var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
	if(elem.value.match(emailExp)){
		return true;
	}else{
		
		return false;
	}
}