pic2= new Image(16,16); 
pic2.src="/images/email/x.png"; 
pic3= new Image(16,16); 
pic3.src="/images/email/valid.png"; 

function testemail(Eid, Iid){
	var emailfilter=/^\w+[\+\.\w-]*@([\w-]+\.)*\w+[\w-]*\.([a-z]{2,4}|\d+)$/i
	
	var returnval=emailfilter.test(document.getElementById(Eid).value);
	
	if (!returnval){
		document.getElementById(Iid).src = '/images/email/x.png';
	}
	else {
		document.getElementById(Iid).src = '/images/email/valid.png';
	}	
}

function checkemail(){
	testemail('txtEmail','valid');
}

function checknlemail(){
	testemail('fields_email','nlvalid');
}