function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
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		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
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}

var preloadFlag = false;
function preloadImages() {
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		wwa_07_home_over = newImage("images/wwa_07-home_over.gif");
		wwa_07_solutions_over = newImage("images/wwa_07-solutions_over.gif");
		wwa_09_howitworks_over = newImage("images/wwa_09-howitworks_over.gif");
		wwa_09_solutions_over = newImage("images/wwa_09-solutions_over.gif");
		wwa_11_howitworks_over = newImage("images/wwa_11-howitworks_over.gif");
		wwa_11_clients_over = newImage("images/wwa_11-clients_over.gif");
		wwa_13_clients_over = newImage("images/wwa_13-clients_over.gif");
		wwa_13_contactus_over = newImage("images/wwa_13-contactus_over.gif");
		wwa_15_contactus_over = newImage("images/wwa_15-contactus_over.gif");
		wwa_16_home_over = newImage("images/wwa_16-home_over.gif");
		wwa_17_home_over = newImage("images/wwa_17-home_over.gif");
		wwa_18_solutions_over = newImage("images/wwa_18-solutions_over.gif");
		wwa_19_howitworks_over = newImage("images/wwa_19-howitworks_over.gif");
		wwa_20_clients_over = newImage("images/wwa_20-clients_over.gif");
		wwa_21_contactus_over = newImage("images/wwa_21-contactus_over.gif");
		wwa_22_contactus_over = newImage("images/wwa_22-contactus_over.gif");
		preloadFlag = true;
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}