<!-- 
if (document.images) {
img1on=new Image();
img1on.src="/images/btn1_on.gif";
img2on=new Image();
img2on.src="/images/btn2_on.gif";
img3on=new Image();
img3on.src="/images/btn3_on.gif";
img4on=new Image();
img4on.src="/images/btn4_on.gif";
img5on=new Image();
img5on.src="/images/btn5_on.gif";
img6on=new Image();
img6on.src="/images/btn6_on.gif";
img7on=new Image();
img7on.src="/images/btn7_on.gif";
img8on=new Image();
img8on.src="/images/btn8_on.gif";
img9on=new Image();
img9on.src="/images/btn9_on.gif";
img10on=new Image();
img10on.src="/images/btn10_on.gif";
img12on=new Image();
img12on.src="/images/btn12_on.gif";

img1off=new Image();
img1off.src="/images/btn1.gif";
img2off=new Image();
img2off.src="/images/btn2.gif";
img3off=new Image();
img3off.src="/images/btn3.gif";
img4off=new Image();
img4off.src="/images/btn4.gif";
img5off=new Image();
img5off.src="/images/btn5.gif";
img6off=new Image();
img6off.src="/images/btn6.gif";
img7off=new Image();
img7off.src="/images/btn7.gif";
img8off=new Image();
img8off.src="/images/btn8.gif";
img9off=new Image();
img9off.src="/images/btn9.gif";
img10off=new Image();
img10off.src="/images/btn10.gif";
img12off=new Image();
img12off.src="/images/btn12.gif";

}
function imgon(imgName) { if (document.images) { document[imgName].src = eval(imgName + "on.src"); } }
function imgoff(imgName) { if (document.images) { document[imgName].src = eval(imgName + "off.src"); } }
// -->