document.onkeyup = KeyCheck;       
function KeyCheck(e)
{
   var KeyID = (window.event) ? event.keyCode : e.keyCode;
   if(KeyID == 13) ValidateLogin()
}

function echeck(str) {
	var at="@"
	var dot="."
	var space=" "
	var lat=str.indexOf(at)
	var lstr=str.length
	var ldot=str.indexOf(dot)
	
	var alert_string = "Please Enter a valid E-mail address."
	
	if (str.length>40){
		alert(alert_string)
		return false
	}
	if (str.indexOf(at)==-1){
		alert(alert_string)
		return false
	}
	if (str.substring(str.indexOf(at)+1).indexOf(at)>-1){
		alert(alert_string)
		return false
	}
	if (str.indexOf(space)>-1){
		alert(alert_string)
		return false
	}
	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		alert(alert_string)
		return false
	}
	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		alert(alert_string)
		return false
	}
	if (str.indexOf(at,(lat+1))!=-1){
		alert(alert_string)
		return false
	}
	if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		alert(alert_string)
		return false
	}
	if (str.indexOf(dot,(lat+2))==-1){
		alert(alert_string)
		return false
	}
	if (str.indexOf(" ")!=-1){
		alert(alert_string)
		return false
	}
	return true					
}

function ValidateLogin(){
	var user = document.getElementById("user")
	var pass = document.getElementById("pass")
	var theform = document.getElementById("loginForm")
	
	if ((user.value == null)||(user.value == "")){
		alert("Please Enter your User Name")
		user.focus();
		return false;
	}
	if ((pass.value == null)||(pass.value == "")){
		alert("Please Enter your Password")
		pass.focus();
		return false;
	}
	if (echeck(user.value) == false){
		user.value="";
		user.focus();
		return false;
	}
 }
 
function ValidateEmail(){
	var email = document.getElementById("email")
	var firstname = document.getElementById("firstname")
	var lastname = document.getElementById("lastname")

	if ((firstname.value == null)||(firstname.value == "")){
		alert("Please Enter your First Name")
		firstname.focus()
		return false
	}
	if ((lastname.value == null)||(lastname.value == "")){
		alert("Please Enter your Last Name")
		lastname.focus()
		return false
	}
	if ((email.value == null)||(email.value == "")){
		alert("Please Enter your E-mail Address")
		email.focus()
		return false
	}
	if (echeck(email.value) == false){
		email.value=""
		email.focus()
		return false
	}
	document.newsletterForm.submit()
 }

 function Hello() {
 	alert("Welcome at TodaysMenu Website!");	
 }
 
 function RedeemCertificate() {
 	var giftNum = document.getElementById("giftNum")
 	//alert("Redeem Certificate " + giftNum.value)
 	location.href = "/check_certificate_do.php?gcnum=" + giftNum.value	
 }