function hover(obj){
  if(document.all){
    UL = obj.getElementsByTagName('ul');
    if(UL.length > 0){
      sousMenu = UL[0].style;
      if(sousMenu.display == 'none' || sousMenu.display == ''){
        sousMenu.display = 'block';
      }else{
        sousMenu.display = 'none';
      }
    }
  }
}

function setHover(){
  var menus = new Array('quesoglc','documentation','sourceforge');

  for (j=0; j < menus.length; j++) {
    LI = document.getElementById(menus[j]).getElementsByTagName('li');
    nLI = LI.length;
    for(i=0; i < nLI; i++){
      LI[i].onmouseover = function(){
        hover(this);
      }
      LI[i].onmouseout = function(){
        hover(this);
      }
    }
  }
}