function montre(id) {
var expdate=new Date();
expdate.setTime(expdate.getTime()+(60*60*1000));
document.cookie="lieu="+id+"; expires="+expdate.toGMTString();	  
if (document.getElementById) {		  document.getElementById(id).style.display="block";		} 
else if (document.all) {		  document.all[id].style.display="block";		} 
else if (document.layers) {		  document.layers[id].display="block";		} }  

function cache(id) {
var expdate=new Date();
expdate.setTime(expdate.getTime()-(1000));
document.cookie="lieu="+id+"; expires="+expdate.toGMTString();		  
if (document.getElementById) {		  document.getElementById(id).style.display="none";		} 
else if (document.all) {		  document.all[id].style.display="none";		} 
else if (document.layers) {		  document.layers[id].display="none";		} }