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) {
		Button1_over = newImage("../images/Button1-over.gif");
		Button2_Button1_over = newImage("../images/Button2-Button1_over.gif");
		Button2_over = newImage("../images/Button2-over.gif");
		Button3_Button2_over = newImage("../images/Button3-Button2_over.gif");
		Button3_over = newImage("../images/Button3-over.gif");
		Button4_Button3_over = newImage("../images/Button4-Button3_over.gif");
		Button4_over = newImage("../images/Button4-over.gif");
		Button5_Button4_over = newImage("../images/Button5-Button4_over.gif");
		Button5_over = newImage("../images/Button5-over.gif");
		Footer_button1_over = newImage("../images/Footer_button1-over.gif");
		Footer_button2_Footer_button1_over = newImage("../images/Footer_button2-Footer_butto.gif");
		Footer_button2_over = newImage("../images/Footer_button2-over.gif");
		footer_button3_Footer_button2_over = newImage("../images/footer_button3-Footer_butto.gif");
		footer_button3_over = newImage("../images/footer_button3-over.gif");
		footer_button4_footer_button3_over = newImage("../images/footer_button4-footer_butto.gif");
		footer_button4_over = newImage("../images/footer_button4-over.gif");
		footer_button5_footer_button4_over = newImage("../images/footer_button5-footer_butto.gif");
		footer_button5_over = newImage("../images/footer_button5-over.gif");
		preloadFlag = true;
	}
}