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.history_df = new Image();
 isimages.history_df.src = "./images/_history.gif";
 isimages.history_ov = new Image();
 isimages.history_ov.src = "./images/history.gif";
 
 isimages.about_df = new Image();
 isimages.about_df.src = "./images/_about.gif";
 isimages.about_ov = new Image();
 isimages.about_ov.src = "./images/about.gif";
 
 isimages.production_df = new Image();
 isimages.production_df.src = "./images/_production.gif";
 isimages.production_ov = new Image();
 isimages.production_ov.src = "./images/production.gif";
 
 isimages.contacts_df = new Image();
 isimages.contacts_df.src = "./images/_contacts.gif";
 isimages.contacts_ov = new Image();
 isimages.contacts_ov.src = "./images/contacts.gif";

}