var good;

function checkEmailAddress(field) {
// Note: The next expression must be all on one line...
//       allow no spaces, linefeeds, or carriage returns!
var goodEmail = field.value.match(/\b(^(\S+@).+((\.com)|(\.net)|(\.edu)|(\.mil)|(\.gov)|(\.org)|(\..{2,2}))$)\b/gi);
if (goodEmail){
   good = true
} else {

   alert('Please enter a valid e-mail address *.')
   field.focus()
   field.select()
   good = false
   }
}

function sendOff()
{
//   good = false
	if ((document.formingreso.email.value == "") || (document.formingreso.email.value== null)) {
	alert("Enter User");
	document.formingreso.email.focus();
	return false;
	}
	else
	if ((document.formingreso.pass.value == "") || (document.formingreso.pass.value== null)) {
	alert("Enter Password");
	document.formingreso.pass.focus();
	return false;
	}
	else	
//	checkEmailAddress(document.form1.email)
//	if (pass){
	document.formingreso.submit()
//	return
//	}     
}

function validar(e) {
  tecla = (document.all) ? e.keyCode : e.which;
  if (tecla==13) sendOff();
}