// JavaScript Document

function myChgPic(myPicURL){
   document.images["bigimage"].src = myPicURL;
}

function myChgPic1(myPicURL1){
   document.images["bigimage1"].src = myPicURL1;
}

function myChgPic2(myPicURL2){
   document.images["bigimage2"].src = myPicURL2;
}