function  checkLightForm(input){
	var errors = "";
	if (input.emailaddress.value == "") {
	errors = errors + "- email is required\n";
	}	
	if (errors == "") {
		return true;
		}
		else {
			alert(errors);
			return false;
		}
}

function tourPop(){
   URL='Demo4.htm'
   Awin = window.open(URL, '', 'resizable,width=790,height=655' );
   Awin.focus;
}


function tourEmailPop(){
   URL='EmailDemo.htm'
   Awin = window.open(URL, '', 'resizable,width=900,height=660' );
   Awin.focus;
}


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) {
	
		homeover = newImage("/images/universal/home_on.gif");
		servicesover = newImage("/images/universal/services_on.gif");
		enginenuityover = newImage("/images/universal/enginenuity_on.gif");
		clientsover = newImage("/images/universal/clients_on.gif");
		partnersover = newImage("/images/universal/partners_on.gif");
		companyover = newImage("/images/universal/company_on.gif");
		
		visualdesignover = newImage("/images/home/visualdesign_on.gif");
		infodesignover = newImage("/images/home/infodesign_on.gif");
		contentmanagementover = newImage("/images/home/contentmanagement_on.gif");
		emailmarketingover = newImage("/images/home/emailmarketing_on.gif");
		
		newsletterover = newImage("/images/home/newsletter_on.gif");
		webinarover = newImage("/images/home/webinar_on.gif");
		quicktourover = newImage("/images/home/quicktour_on.gif");
		
		newslettertileover = newImage("/images/universal/newslettertile_on.gif");
		webinartileover = newImage("/images/universal/webinartile_on.gif");
		quicktourtileover = newImage("/images/universal/quicktourtile_on.gif");
		
		assesstile2over = newImage("/images/universal/assesstile2_on.gif");
		webinartile2over = newImage("/images/universal/webinartile2_on.gif");
		quicktourtile2over = newImage("/images/universal/quicktourtile2_on.gif");
		
		preloadFlag = true;
	}
}