function hover(obj){

  if(document.all){
    UL = obj.getElementsByTagName('ul');
    if(UL.length > 0){
      sousMenu = UL[0].style;
      sousMenu.display = 'block';

    }
  }
}

function shover(obj){

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

function setHover(id){
  LI = document.getElementById(id).getElementsByTagName('li');
  
  nLI = LI.length;
  for(i=0; i < nLI; i++){
	  
    LI[i].onmouseover = function(){

	      hover(this);
	      cacher_select();
	   
    }
    
    LI[i].onmouseout = function(){
	
	    shover(this);
	    montrer_select();
    
    }
  }
}



function cacher_select() {

        var s=document.getElementsByTagName('select');
        for (var i=0; i<s.length; i++) {
        s[i].style.visibility='hidden';
        }

}


function montrer_select() {
        var s=document.getElementsByTagName('select');
        for (var i=0; i<s.length; i++) {
        s[i].style.visibility='visible';
        }


}



/*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(id){
  LI = document.getElementById(id).getElementsByTagName('li');
  nLI = LI.length;
  for(i=0; i < nLI; i++){
    LI[i].onmouseover = function(){
      hover(this);
      cacher_select();
    }
    LI[i].onmouseout = function(){
      hover(this);
	montrer_select();
    }
  }
}


function cacher_select() {

        var s=document.getElementsByTagName('select');
        for (var i=0; i<s.length; i++) {
        s[i].style.visibility='hidden';
        }

}


function montrer_select() {
        var s=document.getElementsByTagName('select');
        for (var i=0; i<s.length; i++) {
        s[i].style.visibility='visible';
        }


}*/