// JavaScript Document  
var aryImages = new Array(2);  
aryImages[0] = "/images/ctef.jpg";  
aryImages[1] = "/images/sctm.jpg";  
aryImages[2] = "/images/ccec.jpg";  
aryImages[3] = "/images/slitting_new.jpg";  
aryImages[4] = "/images/qa.jpg";  
aryImages[5] = "/images/jit_new.jpg";  
aryImages[6] = "/images/eu.jpg";  

for (i=0; i < aryImages.length; i++) {  
var preload = new Image();  
preload.src = aryImages[i];  
}  
function swap(imgIndex) {  
document['imgMain'].src = aryImages[imgIndex];  
}