/**
 * 
 * Project NewsLetter - PHP NewsLetter
 * @package NewsLetter
 * @author Giang Nguyen Duc
 * @copyright 2007 Giang Nguyen Duc
 * 
 */
function validate()
{
	var fname=document.getElementById("firstname").value
	var lname=document.getElementById("lastname").value
	var strRegular = /^[A-Za-z0-9_\.\-]+@[A-Za-z0-9_\.\-]+\.[A-Za-z0-9_\-][A-Za-z0-9_\-]+$/
	submitOK="true"
	if (fname =='')
	 {
		 alert("First Name is empty! Please try again")
		 submitOK="false"
	 }
	else
	{ 
		if (lname == '')
	 	{
			 alert("Last Name is empty! Please try again")
			 submitOK="false"
	 	}
	 	else
	 	{
	 		if (document.getElementById("email").value.search(strRegular)== -1) 
	 		{
				 alert("Not a valid e-mail! Please try again")
				 submitOK="false"
	 		}
	 
	 	}
	}
	
	if (submitOK=="false")
	{
		return false
	}
	
}