function subMenu() { //v3.0
  var i,p,v,obj,args=subMenu.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v='hide')?'hidden':v; }
    obj.visibility=v; }
}

function validEmail(email) {

    var emailReg = "^[\\w-_\.]*[\\w-_\.]\@[\\w]\.+[\\w]+[\\w]$";
    var regex = new RegExp(emailReg);

	if (regex.test(email) == false)
		return false;
	else
		return true;
	
}

function validRadio(radio,correct){

	var radioSelected = 0;

	for (i=0 ; i<radio.length ; i++) {
			if (radio[i].checked == true) {
				radioSelected = 1;
			}
	  	}

	if ( radioSelected )
		return true;
	else
		return false;

}

function validate(form){
	var validForm = "";

	if (form.name.value == "")
		validForm += "Please enter your name.\n";

	if (form.email.value == "") {
		validForm += "Please enter your email address.\n";
		} else if(validEmail(form.email.value) == false) {
			validForm += "Please enter a valid email address.\n";
		}

	if(validForm) {
		alert(validForm);
		return false;
	} else
		return true;
		
}

function validate_coupon(form){
	var validForm = "";

	if (form.name.value == "")
		validForm += "Please enter your name.\n";

	if (form.email.value == "") {
		validForm += "Please enter your email address.\n";
		} else if(validEmail(form.email.value) == false) {
			validForm += "Please enter a valid email address.\n";
		}

	if (validRadio(form.location) == false)
		validForm += "Please select the location for your coupon.\n";

	if(validForm) {
		alert(validForm);
		return false;
	} else
		return true;
		
}