function blocking(nr){
		if (document.layers)
		{
			current = (document.layers[nr].display == 'none') ? 'block' : 'none';
			document.layers[nr].display = current;
		}
		else if (document.all)
		{
			current = (document.all[nr].style.display == 'none') ? 'block' : 'none';
			document.all[nr].style.display = current;
		}
		else if (document.getElementById)
		{
			vista = (document.getElementById(nr).style.display == 'none') ? 'block' : 'none';
			document.getElementById(nr).style.display = vista;
		}
	}
	
	function Display_Search_By_Type(){
	document.getElementById('searchFonera').style.visibility = 'visible';
	}
	
	function Hide_Search_By_Type(){
	document.getElementById('searchFonera').style.visibility = 'hidden';
	}
	
	
	function Display_details(){
	document.getElementById('details_fonera').style.display = 'block';		
	}
		
		
	function UnDisplay_details(){
	document.getElementById('details_fonera').style.display = 'none';		
	}
	
	
	
	function Display_recherche_fonera(){
		if (document.getElementById('recherche').style.display == 'block'){
		document.getElementById('recherche').style.display = 'none';		
		}else{
		document.getElementById('recherche').style.display = 'block';
		}
	}
	
	function Display_recherche_lieu(){
		if (document.getElementById('recherche_adress').style.display == 'block'){
		document.getElementById('recherche_adress').style.display = 'none';		
		}else{
		document.getElementById('recherche_adress').style.display = 'block';
		}
	}