var _gaq = _gaq || [];
  _gaq.push(['_setAccount', 'UA-24979228-1']);
  _gaq.push(['_trackPageview']);
  (function() {
    var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
    ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
    var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
  })(); 

function swap(x) { 
	document.getElementById(x).src="images/textes/"+x+"b.gif"; 
}
function restore(x) { 
	document.getElementById(x).src="images/textes/"+x+".gif"; 
}
function affiche(calque) { 
	document.getElementById(calque).style.display = "block";
}
function efface(calque) { 
	document.getElementById(calque).style.display = "none";
}