var img=new Array;
  for(i=0;i<11;i++) { 
   img[i]=new Image();
   img[i].src="images/navigation/product0"+i+".gif";
  }

function chngimg(obj1) {
 obj="img"+obj1;
 name="img1";
// alert(obj1);
 source=img[obj1].src;
// delay=5;
 if (document.images)  {
  eval("window.document[name].src=source")
}
}