if (document.images){                               img1on = new Image();img1on.src = "gif/nav/aa.gif";img2on = new Image();img2on.src = "gif/nav/bb.gif";img3on = new Image();img3on.src = "gif/nav/cc.gif";img4on = new Image();img4on.src = "gif/nav/dd.gif";img5on = new Image();img5on.src = "gif/nav/ee.gif";
img6on = new Image();img6on.src = "gif/nav/ff.gif";                                              img1off = new Image();img1off.src = "gif/nav/a.gif";img2off = new Image();img2off.src = "gif/nav/b.gif";img3off = new Image();img3off.src = "gif/nav/c.gif";img4off = new Image();img4off.src = "gif/nav/d.gif";img5off = new Image();img5off.src = "gif/nav/e.gif";
img6off = new Image();img6off.src = "gif/nav/f.gif";img1ad = new Image();img1ad.src = "gif/nav/1.gif";img2ad = new Image();img2ad.src = "gif/nav/2.gif";img3ad = new Image();img3ad.src = "gif/nav/3.gif";img4ad = new Image();img4ad.src = "gif/nav/4.gif";img5ad = new Image();img5ad.src = "gif/nav/5.gif";
img6ad = new Image();img6ad.src = "gif/nav/6.gif";
} function imgOn(imgName) {         	if (document.images) {		document[imgName].src = eval(imgName + "on.src");             				document["img0"].src = eval(imgName + "ad.src");		}} function imgOff(imgName) {  	if (document.images) {		document[imgName].src = eval(imgName + "off.src");             				document["img0"].src = "gif/nav/0.gif";		}}