function mouseInMove (evt)    { 
     var x = 0; var y = 0; var plusX = 0; var plusY = 0; 

    if (document.layers)
    {
        x = evt.x;
        y = evt.y;
        plusX = window.pageXOffset;
         plusY = window.pageYOffset;
     } 
    else if (document.all)
   {
       x = event.clientX;   
        y = event.clientY; 
        plusX = document.body.scrollLeft; 
       plusY = document.body.scrollTop;   
   } 
    else if (document.getElementById)
     {
         x = evt.clientX;     
        y = evt.clientY;   
        plusX = window.pageXOffset;
        plusY = window.pageYOffset;
    }

     document.getElementById("popBox" ).style.left    = (x+plusX+15)+"px"; 
    document.getElementById("popBox" ).style.top     = (y+plusY+5)+"px"; 
 } 
/*    
 if (document.layers)                    document.captureEvents(Event.MOUSEMOVE);   
 if (document.layers || document.all)    document.onmousemove = mouseMove;   
   if (document.addEventListener)          document.addEventListener('mousemove', mouseMove, true);   
 */

function montre(id) { 
 var elt = document.getElementById('popBox'); 
 elt.style.display = "block"; 
 //elt.innerHTML = document.getElementById(id).innerHTML;   
} 

 function cache()    { 
 var elt = document.getElementById('popBox'); 
 elt.style.display = "none"; 
  }