function validate_email()
{
	v = true;
	var rxp = /^[a-zA-Z][\w\.-]*[a-zA-Z0-9]@[a-zA-Z0-9][\w\.-]*[a-zA-Z0-9]\.[a-zA-Z][a-zA-Z\.]*[a-zA-Z]$/i;	
	
	st_n = getById("r_student_name");
	st_e = getById("re_student_email");
	pr_n = getById("r_prof_name");
	pr_e = getById("re_prof_email");
	
	var e_ = getById("mailformheader");
	
	if (st_n.value == "") { v = false; }
	if (st_e.value == "") { v = false; }
	if (pr_n.value == "") { v = false; }
	if (pr_e.value == "") { v = false; }

	if (st_e.match(rxp)) {
		alert("valid");
	} else {
		alert("invalid");
	}

	if(!v)
	{
		e_.innerHTML = "Please fill out the form completely. All 4 fields below are required.";
		e_.style.color = "red";
	} else {
		//documents.forms['mailform'].submit();
	}
}