var submitted=0;

function checkSubmit() {
	if (submitted==0) {
		submitted=1;
		return true;
	} else {
		alert('You have already submitted this page. Please be patient');
		return false;
	}
}

function getSender() {
	var senderHField = document.getElementById('preview_sender');
	var firstnameField = document.getElementById('firstname');
	var lastnameField = document.getElementById('surname');

	if (firstnameField.value || lastnameField.value)senderHField.value=firstnameField.value+' '+lastnameField.value;

	return (senderHField.value);
}

function getMessage() {
	var messageField = document.getElementById('message');
	return (messageField.value);
}

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}
function changeimages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeimages.arguments.length; i+=2) {
			document[changeimages.arguments[i]].src = changeimages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadimages() {
	if (document.images) {
		submit_over = newImage("images/submit-over.gif");
		preloadFlag = true;
	}
}

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}
function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}
var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		B1 = newImage("/front_website/registration/images/footerbutton_on.gif");
	
		preloadFlag = true;
	}
}