function pw() {
  return window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth}; 
  function mouseX(evt) {
    return evt.clientX ? evt.clientX + (document.documentElement.scrollLeft || document.body.scrollLeft) : evt.pageX;} 
    function mouseY(evt) {
      return evt.clientY ? evt.clientY + (document.documentElement.scrollTop || document.body.scrollTop) : evt.pageY} 
      function popUp(evt,oi) {
        if (document.getElementById) {var wp = pw(); dm = document.getElementById(oi); 
      ds = dm.style; st = ds.visibility; if (dm.offsetWidth) ew = dm.offsetWidth; 
      else if (dm.clip.width) ew = dm.clip.width; if (st == "visible" || st == "show") { 
        ds.visibility = "hidden"; } 
        else {tv = mouseY(evt) + -220; lv = mouseX(evt) - (ew/4); if (lv < 2) lv = 2; 
        else if (lv + ew > wp) lv -= ew/2; lv += 'px';
        tv += 'px';  ds.left = lv; 
        ds.top = tv; ds.visibility = "visible";
        }
      }
    }