im = new Image;
im.src = "img/bg.gif";
function load(location){ 
return image; 
} 
tr=new Image(); 
tr.src="img/tm_log2.gif"; 
function show(where){ 
stored=where; 
storedLocation=document.images[where].src; 
document.images[where].src="img/tm_log2.gif"; 
} 
function hide(){ 
 document.images[stored].src=storedLocation; 
}
isamap = new Object();
isamap[0] = "_df"
isamap[1] = "_ov"
function isimgact(id, act)
{if(document.images) document.images[id].src =
eval( "isimages." + id + isamap[act] + ".src");}
if (document.images) {
 isimages = new Object();
 isimages.U1_df = new Image();
 isimages.U1_df.src = "img/home.gif";
 isimages.U1_ov = new Image();
 isimages.U1_ov.src = "img/home_up.gif";
}