var compteur;


function rolloff() {
  compteur = setTimeout("fermerTout()",500);
}
function lockmenu() {
  
  clearTimeout(compteur);
}

function nomage(event){
	elt = Event.findElement(event, 'div');
	tmp_menu = elt.id.split("_");
	num_menu = tmp_menu[1];
	
	return num_menu;
}

function rollUp(event){
	nomage(event);
	fermerTout();
	lockmenu();
	if ($('sousMenu'+num_menu)) $('sousMenu'+num_menu).style.display='block';

}
function rollUp2(event){
	nomage(event);
	fermerTout();
	lockmenu();
	if ($('sousMenu'+num_menu)) $('sousMenu'+num_menu).style.display='block';

}
function fermerTout(){
	for (i=1;i<=7;i++){
		if ($('sousMenu'+i)) $('sousMenu'+i).style.display='none';
	}
}

function Init(){
  Event.observe('btMenu_2','mouseover',rollUp);
  Event.observe('btMenu_2','mouseout',rolloff);
  Event.observe('btMenu_3','mouseover',rollUp);
  Event.observe('btMenu_3','mouseout',rolloff);  
  //Event.observe('btMenu_4','mouseover',rollUp);
  //Event.observe('btMenu_4','mouseout',rolloff);
  Event.observe('sousMenu2','mouseover',lockmenu);
  Event.observe('sousMenu2','mouseout',rolloff);
  Event.observe('sousMenu3','mouseover',lockmenu);
  Event.observe('sousMenu3','mouseout',rolloff); 
  //Event.observe('sousMenu4','mouseover',lockmenu);
  //Event.observe('sousMenu4','mouseout',rolloff); 
}
Event.observe(window,'load',Init);