function validateRU(){
	// hide tip if set!
	if($("submit").prototip) $("submit").prototip.remove();
	$('submit').disable();
	var form = $('contactfrm');
	// min req is a name and a form of contact
	var errs = "";
	var firstErrEl = "";
	$('name').className = 'ok';
	if($('name').value==''){
		errs += "Please enter your contact name";
		$('name').className = 'err';
		if(firstErrEl == "") firstErrEl = $('name');
	}
	$('telephone').className = 'ok';
	$('address').className = 'ok';
	$('email').className = 'ok';
	if($('telephone').value=='' && $('address').value=='' && $('email').value==''){
		if(errs != "") errs += "\n";
		errs += "Please provide a contact method";
		$('address').className = 'err';
		if(firstErrEl == "") firstErrEl = $('address');
		$('email').className = 'err';
		if(firstErrEl == "") firstErrEl = $('email');
		$('telephone').className = 'err';
		if(firstErrEl == "") firstErrEl = $('telephone');
	}
	if($('email').value!='' && !isEMailAddr($('email').value)){
		if(errs != "") errs += "\n";
		errs += "Email address incorrectly formatted";
		$('email').className = 'err';
		if(firstErrEl == "") firstErrEl = $('email');
	}
	if(errs!=""){
		//alert("Errors prevented your submission:\n"+errs);
		$('submit').enable();
		firstErrEl.focus();
		var element = $("submit");
		errs = errs.replace("\n", "<br />");
		element.tip = new Tip(element, errs, {
			showOn: 'click', 
			hideOn: false, 
			hideAfter: Tips.options.defaultTimeout, 
			hook:{target: 'rightMiddle', tip: 'leftMiddle', mouse: false}, 
			stem: 'leftMiddle', 
			style: 'protored', 
			title: 'Errors prevented your submission:', 
			target: firstErrEl});
		$("submit").prototip.show();
		$("submit").tip.wrapper.shake({duration: 0.5, distance: 2});
		return false;
	} else {
		// hide tip if set!
		if($("submit").prototip) $("submit").prototip.hide();
	}
	protectForm();
	form.request({
		onComplete: function(transport){ 
			$('submit').enable();
			var response = transport.responseText;
			var foo = response.split(": ");
			var code = foo[0];
			var time = foo[1];
			var element = $("submit");
			switch(code){
			case "e":
				// relay error code
				element.tip = new Tip(element, 'Your request could not be sent - error reference: %e'.replace('%e',time), { showOn: 'click', hideOn: { element: 'closeButton', event: 'click'}, closeButton: true, hook:{target: 'rightMiddle', tip: 'leftMiddle', mouse: false}, stem: 'leftMiddle', style: 'protogrey', title: 'ERROR'});
				$("submit").prototip.show();
				$("submit").tip.wrapper.shake({duration: 0.5, distance: 2});
				break;
				
			case "ok":
				// relay success
				element.tip = new Tip(element, 'Thank you for your Request, in future you will now receive Hepco Newsletters.', { showOn: 'click', hideOn: { element: 'closeButton', event: 'click'}, closeButton: true, fixed: 'true', style: 'protoblue', offset: { x: -93, y: -40 }, title: 'Sent'});
				$("submit").prototip.show();
				new Effect.ShakeVertical($("submit").tip.wrapper, { queue: 'end'});
				break;
			}
		}
	});
}

function isEMailAddr(str) {
    var re = /^[\w-]+(\.[\w-]+)*@([\w-]+\.)+[a-zA-Z]{2,7}$/;
    if (!str.match(re)) {
        return false;
    } else {
        return true;
    }
}