var al_isNav = (navigator.appName.indexOf("Netscape") !=-1);
function handlerMM(e){
   al_x = (al_isNav) ? e.pageX : event.x + document.body.scrollLeft - document.body.clientLeft;
   al_y = (al_isNav) ? e.pageY : event.y + document.body.scrollTop - document.body.clientTop;
   if (document.body && document.body.parentElement && document.body.parentElement.clientLeft) {
      var bodParent = document.body.parentElement;
      al_x += bodParent.scrollLeft - bodParent.clientLeft;
      al_y += bodParent.scrollTop - bodParent.clientTop;
   }
}
document.onmousemove = handlerMM;

al_x = 100;
al_y = 100;
al_timeout_ref=0;
al_timeout_in_ref=0;
al_overdiv=0;
al_overlink=0;
al_id=-1;

function al_div_out () {
   if (al_timeout_ref == 0) al_timeout_ref = setTimeout('al_timeout()',1000);
   al_overdiv = 0;
}

function al_div_in () {
   al_overdiv = 1;
   if (al_timeout_ref != 0) clearTimeout(al_timeout_ref);
   al_timeout_ref = 0;
}

function al_link_out () {
   if ((al_overdiv == 0) && (al_overlink == 1)) {
      if (al_timeout_ref == 0) al_timeout_ref = setTimeout('al_timeout()',1000);
      if (al_timeout_in_ref != 0) clearTimeout(al_timeout_in_ref);
      al_timeout_in_ref = 0;
   } 
   al_overlink = 0;

}

function al_link_in (id, content) {
   if ((id != al_id) || ((al_overlink == 0) && (al_overdiv == 0) && (al_timeout_ref == 0))) {
      al_content = content;
      if (al_timeout_in_ref == 0) setTimeout('al_show('+id+')',200)
   }
   if (al_timeout_ref!= 0) clearTimeout(al_timeout_ref);
   al_timeout_ref = 0;
   al_overlink = 1;

}

function al_timeout() {

   if ((al_overdiv == 0) && (al_overlink == 0) && (al_timeout_ref!= 0)) {
      al_timeout_ref=0;
      if (document.getElementById) { // DOM3 = IE5, NS6
         var menu_element = document.getElementById('al_popup');
         menu_element.style.visibility = 'hidden';
      }
   }
}

function al_show( id ) {

   if ((al_overlink == 1) || (al_overdiv ==1)) {
      if (al_timeout_ref!= 0) clearTimeout(al_timeout_ref);
      al_timeout_ref = 0;
      al_timeout_in_ref = 0;
      al_id = id;

      if (document.getElementById) { // DOM3 = IE5, NS6
         var menu_element = document.getElementById('al_popup');
         if (al_y> 10) al_y -= 5;
         al_x += 15;
         menu_element.style.left = al_x + "px";
         menu_element.style.top = al_y + "px";
         menu_element.style.visibility = 'visible';
         menu_element.innerHTML=al_content;
         menu_element.style.display = 'block';
      }
   } else {
      al_id = -1;
   }
}