// init top nav images
function initTopNavImages() {
	if(document.images) {
		registeroff 	  	= new Image();
		registerroll    	= new Image();
		registeroff.src 	= "../images/local/registeroff.gif";
		registerroll.src 	= "../images/local/registerroll.gif";

		mapoff 	  			= new Image();
		maproll    			= new Image();
		mapoff.src 			= "../images/local/mapoff.gif";
		maproll.src 		= "../images/local/maproll.gif";
		
		storeoff 	  		= new Image();
		storeroll    		= new Image();
		storeoff.src 		= "../images/local/storeoff.gif";
		storeroll.src 		= "../images/local/storeroll.gif";

		eacomoff 	  		= new Image();
		eacomroll    		= new Image();
		eacomoff.src 		= "../images/local/eacomoff.gif";
		eacomroll.src 		= "../images/local/eacomroll.gif";

		contactoff 	  		= new Image();
		contactroll    		= new Image();
		contactoff.src 		= "../images/local/contactoff.gif";
		contactroll.src 	= "../images/local/contactroll.gif";
	}
}

// changes the section in the left navbar, also turns off selected button
function changeLeftNavSection(xsNewSection, xsSelectedButton) {
	 vsSelectedItem = parent.navbar.selectedItem;
	 if(xsNewSection != vsSelectedItem) {
		onInLeftNav(xsNewSection);
		offInLeftNav(vsSelectedItem);
		parent.navbar.selectedItem = xsNewSection;
	}
	off(xsSelectedButton);
}