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) {
		companyh = newImage("/img/companyh.gif");
		contacth = newImage("/img/contacth.gif");
		ecommerceh = newImage("/img/ecommerceh.gif");
		fasttrackingh = newImage("/img/fasttrackingh.gif");
		jobsh = newImage("/img/jobsh.gif");
		investorsh = newImage("/img/investorsh.gif");
		reservedh = newImage("/img/reservedh.gif");
		linksh = newImage("/img/linksh.gif");
		networkh = newImage("/img/networkh.gif");
		newsh = newImage("/img/newsh.gif");
		servicesh = newImage("/img/servicesh.gif");
		sitemaph = newImage("/img/sitemaph.gif");
		trackingh = newImage("/img/trackingh.gif");
		preloadFlag = true;
	}
}