if (document.images) {
	var imagesAboutNormal= new Object();
	imagesAboutNormal["overview"] = new Image(28, 79);
	imagesAboutNormal["overview"].src = "images/overview_normal.gif";
	imagesAboutNormal["sales"] = new Image(28, 96);
	imagesAboutNormal["sales"].src = "images/sales_normal.gif";

	var imagesAboutHilite= new Object();

	imagesAboutHilite["overview"] = new Image(28, 79);
	imagesAboutHilite["overview"].src = "images/overview_hilite.gif";
	imagesAboutHilite["sales"] = new Image(28, 96);
	imagesAboutHilite["sales"].src = "images/sales_hilite.gif";
}