if (document.images)
{
	b1off = new Image(14,15); b1off.src ="images/pixoff.gif";
	b1on = new Image(14,15); b1on.src = "images/pixon.gif";
	b2off = new Image(61,8); b2off.src ="images/but1off.gif";
	b2on = new Image(61,8); b2on.src = "images/but1on.gif";
	b3off = new Image(80,11); b3off.src ="images/but2off.gif";
	b3on = new Image(11,11); b3on.src = "images/but2on.gif";
	b4off = new Image(14,15); b4off.src ="images/pixoff.gif";
	b4on = new Image(14,15); b4on.src = "images/pixon.gif";
	b5off = new Image(95,10); b5off.src ="images/but3off.gif";
	b5on = new Image(95,10); b5on.src = "images/but3on.gif";
	b6off = new Image(14,15); b6off.src ="images/pixoff.gif";
	b6on = new Image(14,15); b6on.src = "images/pixon.gif";
	b7off = new Image(69,10); b7off.src ="images/but4off.gif";
	b7on = new Image(69,10); b7on.src = "images/but4on.gif";
	b9off = new Image(90,10); b9off.src ="images/but5off.gif";
	b9on = new Image(90,10); b9on.src = "images/but5on.gif";
	b11off = new Image(67,10); b11off.src ="images/but6off.gif";
	b11on = new Image(67,10); b11on.src = "images/but6on.gif";
	b8off = new Image(14,15); b8off.src ="images/pixoff.gif";
	b8on = new Image(14,15); b8on.src = "images/pixon.gif";
	b10off = new Image(14,15); b10off.src ="images/pixoff.gif";
	b10on = new Image(14,15); b10on.src = "images/pixon.gif";
	b12off = new Image(14,15); b12off.src ="images/pixoff.gif";
	b12on = new Image(14,15); b12on.src = "images/pixon.gif";

	function switch_img(imgName,status)
	{
		eval("document['" + imgName + "'].src = " + imgName + status + ".src");
	}
}