function getPosXY(ev) {
         var pos = new Coord(0,0);
                  if(ev.pageX){
                           pos.x = ev.pageX;	
                           pos.y = ev.pageY;
                  } else if(window.event && window.event.clientX) {
                           var isStrictMode = document.compatMode 
                                    && document.compatMode != "BackCompat" ? true : false;
                           var scrollX = isStrictMode ? 
                                    document.documentElement.scrollLeft : document.body.scrollLeft;
                           var scrollY	= isStrictMode ? 
                                    document.documentElement.scrollTop : document.body.scrollTop;
                           //pos.x = window.event.clientX + scrollX;
                           pos = window.event.clientY + scrollY;
                                                               
                  }
         return pos;
}

function showPosition(evt){
         // event-Objekt 
         e = evt || window.event;
         // Koordinaten des Events
         mCoord = getPosXY(e);
         if(document.getElementById) {
                  //document.getElementById("a10").innerHTML = mCoord.toString();
                  document.getElementById('adLayer'+id).style.top = mCoord.toString();
         }
         return true;
}
                                             
function closeLayer(id) {
         document.getElementById('adLayer'+id).style.display = "none";
}

function showLayer(id) {
         showPosition;
         document.getElementById('adLayer'+id).style.display = "block";                                                 
}