/*function validEmail()
{
	var email_regex = /^[_A-Za-z0-9-]+(\.[_A-Za-z0-9-]+)*@[A-Za-z0-9-]+(\.[A-Za-z0-9-]+)*\.(([A-Za-z]{2,3})|(aero|coop|info|museum|name))$/;
	if(!email_regex.test(document.emailform.email.value))
		{
			alert("The email address you entered is not valid.");
			document.emailform.email.focus();
			return false;
		}
	return true;
}

function SubmitForm()
{
	if ( validEmail() ) {
		document.emailform.submit();
	}
}*/

function trim(s) {
  while (s.substring(0,1) == ' ') {
    s = s.substring(1,s.length);
  }
  while (s.substring(s.length-1,s.length) == ' ') {
    s = s.substring(0,s.length-1);
  }
  return s;
}

function validEmaila(){
	var txt_email 	= document.emailform.email;
	var trim_email 	= trim(txt_email.value);
	var email_regex = /^[_A-Za-z0-9-]+(\.[_A-Za-z0-9-]+)*@[A-Za-z0-9-]+(\.[A-Za-z0-9-]+)*\.(([A-Za-z]{2,3})|(aero|coop|info|museum|name))$/;
	if(!email_regex.test(trim_email))
	{
		if(txt_email.value == ""){
			alert("Please enter an email address.");
			txt_email.focus();
		}
		else{
			alert("The email address you entered is not valid.");
			txt_email.focus();
		}
		return false;
	}
	return true;
}