function alertField(e, msg) {
		e.value = msg;
		e.focus();
		e.select();
}
function validSubmit() {
	var form = document.getElementById("emailForm");
	var emailRegxp = /^([\w]+)(.[\w]+)*@([\w]+)(.[\w]{2,3}){1,2}$/;
	var nameRegexp = /^[a-zA-Z ]+$/;
	var emailMsg = "Enter a valid email address.";
	var nameMsg = "Please enter valid name.";
	
	if (form.toAddr.value == "" || form.toAddr.value == emailMsg) {
		alertField(form.toAddr, emailMsg);
		return false;
	} else if (emailRegxp.test(form.toAddr.value) != true) {
		alertField(form.toAddr, emailMsg);
		return false;
	} else {
	}
	
	/*
	if (form.senderName.value == "" || form.senderName.value == nameMsg) {
		alertField(form.senderName, nameMsg);
		return false;
	} else if (nameRegexp.test(form.senderName.value) != true) {
		alertField(form.senderName, nameMsg);
		return false;
	}
	*/
	
	if (form.senderAddr.value == "" || form.senderAddr.value == emailMsg) {
		alertField(form.senderAddr, emailMsg);
		return false;
	} else if (emailRegxp.test(form.senderAddr.value) != true) {
		alertField(form.senderAddr, emailMsg);
		return false;
	} else {
	}

	form.submit();
}