//This function validates Email.				

	

var emailfilter=/^\w+[\+\.\w-]*@([\w-]+\.)*\w+[\w-]*\.([a-z]{2,4}|\d+)$/i

function checkEmail(e)
{
var returnval=emailfilter.test(e)
if (returnval==false){
alert("Please enter a valid email address.")
e.select()
}
return returnval
}