var js_ok=false;

image_path_="images/";
js_but = new Array();


browser = (navigator.userAgent.indexOf("Opera")!=-1 && navigator.userAgent.indexOf("5.")>0) ? "op" : (document.all) ? "ie" : (document.layers) ? "nn" : (!document.all && document.getElementById) ? "mo" : "";

if (browser !="") 
  js_ok=true;

function js_button(pic,desc)
{
  if (js_ok)
  {
    this.pic = new Image();
    this.pic.src = image_path_+ pic + "_lo.gif";
    this.pic_active = new Image();
    this.pic_active.src = image_path_ + pic + "_ac.gif";
    this.text = desc;
    }
  }
  
function js_moveover(id)
{
  if (js_ok)
  {
    document[id].src = js_but[id].pic_active.src;
    window.status = js_but[id].text;
  }
}
function js_moveout(id)
{
  if (js_ok)
  {
    document[id].src = js_but[id].pic.src;
    window.status = "";
  }
}