function setActiveStyleSheet(title) {
  //alert('ee')
  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") == title) 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;
}
//window.onload = function(e) {
function onload_style(e) {
  var cookie = readCookie("styleIntranetPF");
  title = cookie ? cookie : getPreferredStyleSheet();
  //var title = cookie ? cookie : getPreferredStyleSheet();
  setActiveStyleSheet(title);
}

Event.observe(window,'load',onload_style,false)

window.onunload = function(e) {
//function onunload_style(e) {
  //var title = getActiveStyleSheet();
  title = getActiveStyleSheet();
  createCookie("styleIntranetPF", title, 365);
}
//Event.observe(window,'unload',onunload_style,false)

var cookie = readCookie("styleIntranetPF");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title);

/*------------------------------------------------------------------*/
var les_styles = new Array("standard","police_plus_1","police_plus_2")

//var title = "standard"
function police(symbole)
{
	//si il n'y a pas deja un style sauvegarder
	if(title == null || title == "null")
	{
		title = "standard"
	}

	var num_style = null

	//trouve emplacement style dans les_styles
	for(var i = 0 ; (i < les_styles.length && num_style == null); i++)
	{
		if(les_styles[i] == title)
		{
			num_style = i;	
		}
	}

	if(symbole == "+")
	{
		if( num_style+1 < les_styles.length) num_style = num_style+1;	
	}
	if(symbole == "-")
	{
		if( num_style-1 >= 0) num_style = num_style-1;	
	}
	if(symbole == "standard")
	{
		num_style = 0;	
	}

	title = les_styles[num_style] 
	setActiveStyleSheet(title)
}