// JavaScript Document

function checkMail()
{
	var x = document.contactform.email.value;
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;

	if (!filter.test(x)) 
		return false;
	else
		return true;
	
}


function checkandsubmit(){

	fname = document.contactform.fname.value;
	lname = document.contactform.lname.value;
	email = document.contactform.email.value;
	postcode = document.contactform.postcode.value;
	
	if ( fname =="" || fname == null  || lname =="" || lname == null  || email =="" || email == null) {
		alert("Opps, Please fill in all the required fields.");
	}
	else if (!checkMail())
	{
		alert("Opps, Please enter with a valid email adrress.");
	}
	else{

		document.contactform.submit();
	}
	
}