if (document.images) {
	B1on = new Image();
	B1on.src = "/design/Button-PatternsP1.gif";
	B1aon = new Image();
	B1aon.src = "/design/Button-PatternsD1.gif";
	B2on = new Image();
	B2on.src = "/design/Button-Thread1.gif";
	B3on = new Image();
	B3on.src = "/design/Button-Needles1.gif";
	B4on = new Image();
	B4on.src = "/design/Button-Parts1.gif";
	B5on = new Image();
	B5on.src = "/design/Button-Batting1.gif";
	B6on = new Image();
	B6on.src = "/design/Button-Books1.gif";
	B7on = new Image();
	B7on.src = "/design/Button-ClassesNew1.gif";


	B1off = new Image();
	B1off.src = "/design/Button-PatternsP.gif";
	B1aoff = new Image();
	B1aoff.src = "/design/Button-PatternsD.gif";
	B2off = new Image();
	B2off.src = "/design/Button-Thread.gif";
	B3off = new Image();
	B3off.src = "/design/Button-Needles.gif";
	B4off = new Image();
	B4off.src = "/design/Button-Parts.gif";
	B5off = new Image();
	B5off.src = "/design/Button-Batting.gif";
	B6off = new Image();
	B6off.src = "/design/Button-Books.gif";
	B7off = new Image();
	B7off.src = "/design/Button-ClassesNew.gif";

}

function ButtonOn(ButtonName) {
	if (document.images) {
		document[ButtonName].src = eval(ButtonName + "on.src");
	}
}
function ButtonOff(ButtonName) {
	if (document.images) {
		document[ButtonName].src = eval(ButtonName + "off.src");
	}
}