function setActiveStyleSheet(title2)
{
var i, a, main;

for(i=0; (a = document.getElementsByTagName("link")[i]); i++)
{
if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title"))
{
a.disabled = true; if(a.getAttribute("title") == title2) a.disabled = false;
}
}
}

function getActiveStyleSheet()
{
var i, a;  
for(i=0; (a = document.getElementsByTagName("link")[i]); i++)
{
if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");
}
return null;
}

function getPreferredStyleSheet()
{
var i, a;
for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
if(a.getAttribute("rel").indexOf("style") != -1
&& a.getAttribute("rel").indexOf("alt") == -1
&& a.getAttribute("title")
) return a.getAttribute("title");
}
return null;
}

function createCookie(name,value,days)
{
if (days)
{
var date = new Date();
date.setTime(date.getTime()+(days*24*60*60*1000));
var expires = "; expires="+date.toGMTString();
}
else expires = "";
document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name)
{
var nameEQ = name + "=";
var ca = document.cookie.split(';');
for(var i=0;i < ca.length;i++)
{
var c = ca[i];
while (c.charAt(0)==' ') c = c.substring(1,c.length);
if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
}
return null;
}

//Au load
var cookie = readCookie("style");  

if (cookie == null || cookie == "null")
{
title2 = getPreferredStyleSheet();
//pour s'assurer qu'une feuille de style est appliquŽe au load sur tous les browsers
if (title2 == null || title2 == "null" || title2 == "" )
{ 
title2 = "gros";
}
}
else
{
title2 = cookie;
}
setActiveStyleSheet(title2);

//window.onunload = function(e)
function onunloadPage()
{
var title2 = getActiveStyleSheet();
createCookie("style", title2, 365);
}

//Fonction pour changer la feuille de style
function changeTypo()
{
var active = getActiveStyleSheet();

var title2
if (active == null || active == "null")
{ 
title2 = "gros";
}
else
{
if (active == "gros")
{
title2 = "petit";
}
if (active == "petit")
{
title2 = "gros";
}
if (active == "default")
{
title2 = "petit";
}
}
setActiveStyleSheet(title2);
}