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) {		
		menu_services_over = newImage("images/menu_services-over.jpg");
		menu_portfolio_over = newImage("images/menu_portfolio-over.jpg");
		menu_home_over = newImage("images/menu_home-over.jpg");
		menu_company_over = newImage("images/menu_company-over.jpg");
		menu_contact_over = newImage("images/menu_contact-over.jpg");		
		menu_small_services_over = newImage("images/menu_small_services-over.jpg");
		menu_small_portfolio_over = newImage("images/menu_small_portfolio-over.jpg");
		menu_small_company_over = newImage("images/menu_small_company-over.jpg");
		menu_small_contact_over = newImage("images/menu_small_contact-over.jpg");		
		preloadFlag = true;
	}
}

function openModal(winTitle,winHTMLContent,w,h) {
	var win = new Window({ wiredDrag:true, width: w, height: h, showEffect:Effect.BlindDown, hideEffect: Effect.SwitchOff, showEffectOptions: {duration:1}});	
	win.setTitle(winTitle);
	win.setHTMLContent(winHTMLContent);
	win.showCenter(true);
}

function openModalURL(winTitle,winURL,w,h) {	
	var win = new Window({ wiredDrag:true, width: w, height: h, showEffect:Effect.BlindDown, hideEffect: Effect.SwitchOff, showEffectOptions: {duration:1}});	
	win.setTitle(winTitle);
	win.setURL(winURL);
	win.refresh();
	win.showCenter(true);
}