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) {
		layout_14_Button1_over = newImage("images/layout_14-Button1_over.gif");
		layout_16_Button1_over = newImage("images/layout_16-Button1_over.gif");
		Button1_over = newImage("images/Button1-over.gif");
		layout_18_Button1_over = newImage("images/layout_18-Button1_over.gif");
		layout_20_Button1_over = newImage("images/layout_20-Button1_over.gif");
		layout_20_Button2_over = newImage("images/layout_20-Button2_over.gif");
		layout_22_Button2_over = newImage("images/layout_22-Button2_over.gif");
		Button2_over = newImage("images/Button2-over.gif");
		layout_24_Button2_over = newImage("images/layout_24-Button2_over.gif");
		layout_25_Button2_over = newImage("images/layout_25-Button2_over.gif");
		layout_25_Button3_over = newImage("images/layout_25-Button3_over.gif");
		layout_26_Button3_over = newImage("images/layout_26-Button3_over.gif");
		Button3_over = newImage("images/Button3-over.gif");
		layout_28_Button3_over = newImage("images/layout_28-Button3_over.gif");
		layout_29_Button3_over = newImage("images/layout_29-Button3_over.gif");
		layout_29_Button4_over = newImage("images/layout_29-Button4_over.gif");
		layout_30_Button4_over = newImage("images/layout_30-Button4_over.gif");
		Button4_over = newImage("images/Button4-over.gif");
		layout_32_Button4_over = newImage("images/layout_32-Button4_over.gif");
		layout_33_Button4_over = newImage("images/layout_33-Button4_over.gif");
		layout_33_Button5_over = newImage("images/layout_33-Button5_over.gif");
		layout_34_Button5_over = newImage("images/layout_34-Button5_over.gif");
		Button5_over = newImage("images/Button5-over.gif");
		layout_36_Button5_over = newImage("images/layout_36-Button5_over.gif");
		layout_37_Button5_over = newImage("images/layout_37-Button5_over.gif");
		layout_37_Button6_over = newImage("images/layout_37-Button6_over.gif");
		layout_38_Button6_over = newImage("images/layout_38-Button6_over.gif");
		Button6_over = newImage("images/Button6-over.gif");
		layout_40_Button6_over = newImage("images/layout_40-Button6_over.gif");
		layout_41_Button6_over = newImage("images/layout_41-Button6_over.gif");
		preloadFlag = true;
	}
}
function changeclass(id, newClass) 
{
	var identity
	identity=document.getElementById(id);
	identity.className=newClass;
}