// JavaScript Document
var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
function validemail()
{
	var email=document.form1.email.value;
	valid=true;
	if(email=='')
	{
			//alert("hi");
		document.getElementById('msgemail').innerHTML="Please enter your email address";
		valid=false;
	}
	else 
	{
	if(!document.form1.email.value.match(emailExp))
	{
		document.getElementById('msgemail').innerHTML="Please enter a valid email address";
		valid=false;
	}
	else
	{
		document.getElementById('msgemail').innerHTML="";
	}
	}
	return valid;
}