function cache_select(){
	if(document.getElementById('type_materiaux')){
		document.getElementById('type_materiaux').style.display='none';
	}
}

function montre_select(){
	if(document.getElementById('type_materiaux')){
		document.getElementById('type_materiaux').style.display='block';
	}
}


function montre_multifix(){
	document.getElementById('menu_multifix').style.display='block';
	cache_select();
}
function cache_multifix(){
	document.getElementById('menu_multifix').style.display='none';
	montre_select();
}
function montre_jetvis(){
	document.getElementById('menu_jetvis').style.display='block';
	cache_select();
}
function cache_jetvis(){
	document.getElementById('menu_jetvis').style.display='none';
	montre_select();
}
function montre_jetbat(){
	document.getElementById('menu_jetbat').style.display='block';
	cache_select();
}
function cache_jetbat(){
	document.getElementById('menu_jetbat').style.display='none';
	montre_select();
}