// JavaScript Document
 function montre(calque)
  {
  if (document.layers && document.layers[calque])
    {
    document.layers[calque].visibility = 'visible';
    }
  else if (document.all)
    {
    document.all[calque].style.visibility = 'visible';
    document.all[calque].style.zIndex = 100;
    }
  else if (document.getElementById)
    {
    document.getElementById(calque).style.visibility = 'visible';     
	document.getElementById(calque).style.zIndex = 100;
    }
  }

function cache(calque)
  {
  if (document.layers && document.layers[calque])
    {
    document.layers[calque].visibility = 'hidden';
    }
  else if (document.all)
    {
    document.all[calque].style.visibility = 'hidden';
    }
  else if (document.getElementById)
    {
    document.getElementById(calque).style.visibility = 'hidden';
    }
  }
function viewBtn(nom,src) {	
	document.images[nom].src=src;
}