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) {
		home_over = newImage("images/home_over.gif");
		aboutus_over = newImage("images/aboutus_over.gif");
		teambios_over = newImage("images/teambios_over.gif");
	  services_over = newImage("images/services_over.gif");
		partners_over = newImage("images/partners_over.gif");
		contactus_over = newImage("/images/contactus_over.gif");
		csb_over = newImage("/images/csb_over.gif");
		preloadFlag = true;
	}
}