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/9.jpg";
 isimages.U1_ov = new Image();
 isimages.U1_ov.src = "img/9x.jpg";
 
 isimages.U2_df = new Image();
 isimages.U2_df.src = "img/4.jpg";
 isimages.U2_ov = new Image();
 isimages.U2_ov.src = "img/4x.jpg";
 
 isimages.U3_df = new Image();
 isimages.U3_df.src = "img/10.jpg";
 isimages.U3_ov = new Image();
 isimages.U3_ov.src = "img/10x.jpg";
 
 isimages.U4_df = new Image();
 isimages.U4_df.src = "img/11.jpg";
 isimages.U4_ov = new Image();
 isimages.U4_ov.src = "img/11x.jpg";
 
 isimages.U5_df = new Image();
 isimages.U5_df.src = "img/12.jpg";
 isimages.U5_ov = new Image();
 isimages.U5_ov.src = "img/12x.jpg";
}