function on(img)
{
 if (!document.images) return;

 setTimeout ('document.images["'+img+'"].src = "http://www.vebpro.net/buttons/'+img+'_over.jpg";', 0);
}
function off(img)
{
 if (!document.images) return;
 
 setTimeout ('document.images["'+img+'"].src = "http://www.vebpro.net/buttons/'+img+'_default.jpg";', 0);
}
//-->


<!--
var imgslist = new Array(
"http://www.vebpro.net/buttons/image1_over.jpg",
"http://www.vebpro.net/buttons/image2_over.jpg",
"http://www.vebpro.net/buttons/image3_over.jpg",
"http://www.vebpro.net/buttons/image4_over.jpg",
"http://www.vebpro.net/buttons/image5_over.jpg",
"http://www.vebpro.net/buttons/image6_over.jpg"
);
var imgs=new Array();
if (document.images)
 for (x=0; x<imgslist.length; x++)
  {imgs[x]=new Image(); imgs[x].src = imgslist[x];}
//-->