function initMouse() {
   var grow = document.getElementById('menu_amo');
   var decrease = document.getElementById('ferme_smooth');
   grow.onmouseover = divGrow;
   decrease.onclick = divDecrease;
}

var div_depth = 10 ;



function divGrow() {
   /* var growDiv = document.getElementById('menu_amo').style.width= div_width+'px'; */
    var growDiv = document.getElementById('menu_amo').style.left = div_depth+'px';
 
  
    if(div_depth != 10) {
        div_depth += 10;
        timer_u = setTimeout('divGrow()', 2);
    } else {
       /*     clearTimeout('timer_u'); */
      delete(timer_u);
        var ferme_s = document.getElementById('ferme_smooth').style ;
      /*    ferme_s.display= 'block' ; */
    }
}


function divDecrease() {
    var growDiv = document.getElementById('menu_amo').style.left= div_depth+'px';

  
    if(div_depth != -160) {
        div_depth -= 10;
        timer_d = setTimeout('divDecrease()', 2);
    } else {
 /*         clearTimeout('timer_d'); */
      delete('timer_d');
        var ferme_s = document.getElementById('ferme_smooth').style ;
      /*    ferme_s.display= 'block' ; */
    }
}