if (document.images)
{
   community                = new Image();
   community.src             = "images/community.gif";
   communitydown             = new Image();
   communitydown.src         = "images/community_over.gif";

   resources               = new Image();
   resources.src           = "images/resources.gif";
   resourcesdown           = new Image();
   resourcesdown.src       = "images/resources_over.gif";
   
   sites               = new Image();
   sites.src           = "images/sites.gif";
   sitesdown           = new Image();
   sitesdown.src       = "images/sites_over.gif";

   hotpress               = new Image();
   hotpress.src           = "images/hotpress.gif";
   hotpressdown           = new Image();
   hotpressdown.src       = "images/hotpress_over.gif";

   about               = new Image();
   about.src           = "images/about.gif";
   aboutdown           = new Image();
   aboutdown.src       = "images/about_over.gif";
}

function buttondown(bname)
{
    if (document.images)
        document[bname].src = eval(bname + "down.src");
}

function buttonup(bname)
{
    if (document.images)
        document[bname].src = eval(bname + ".src");
}