if (document.images) { 
img1on = new Image();
img1on.src = "img/012.jpg"; 
img1off = new Image(); 
img1off.src = "img/011.jpg"; 
img2on = new Image();
img2on.src = "img/022.jpg"; 
img2off = new Image(); 
img2off.src = "img/021.jpg";
img3on = new Image();
img3on.src = "img/032.jpg"; 
img3off = new Image(); 
img3off.src = "img/031.jpg";
img4on = new Image();
img4on.src = "img/042.jpg"; 
img4off = new Image(); 
img4off.src = "img/041.jpg";
img5on = new Image();
img5on.src = "img/052.jpg"; 
img5off = new Image(); 
img5off.src = "img/051.jpg";
img6on = new Image();
img6on.src = "img/062.jpg"; 
img6off = new Image(); 
img6off.src = "img/061.jpg";
img7on = new Image();
img7on.src = "img/072.jpg"; 
img7off = new Image(); 
img7off.src = "img/071.jpg";
img8on = new Image();
img8on.src = "img/082.jpg"; 
img8off = new Image(); 
img8off.src = "img/081.jpg";

}
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");}
}