// JavaScript Document

function validate_orderform(f) {
var loginerror = ""; 
var errlvl = 0;
if (f.cust_name.value == "") {
loginerror = loginerror + "Please enter your name.\n\r";
errlvl =1;
}

var re = /^\w+([\.-]?\w+)*@([\.-]?\w+)*(\.\w{2,3})+$/;
	
if(re.test(f.cust_email.value) == false) {
  	loginerror = loginerror + "Please enter a valid email address.\n\r";
	errlvl =1;
}

if (f.cust_email.value == "") {
loginerror = loginerror + "Please enter your email address.\n\r";
errlvl =1;
}
if (f.cust_tel.value == "") {
loginerror = loginerror + "Please enter your telephone number.\n\r";
errlvl =1;
}
if (f.cust_address.value == "") {
loginerror = loginerror + "Please enter your preferred delivery address.\n\r";
errlvl =1;
}

if (errlvl ==1) {
alert(loginerror);
return false;
} else {
return true;
}
}