/*********************************************************************************************
* StyleSwitcher javascript
* Credit to A List Apart : http://www.alistapart.com/stories/alternate/
*********************************************************************************************/
var standardCSS = "HRDP standard";
var alternateCSS = "HRDP large";

function switchStyle() {
	var title = getActiveStyleSheet();
	
	if (title) {
		if (title.indexOf("standard") != -1) {
			setActiveStyleSheet(alternateCSS);
		}
		else {
			setActiveStyleSheet(standardCSS);
		}
	}
	else {
		setActiveStyleSheet(standardCSS);	
	}
}

function setActiveStyleSheet(title) {
  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;
	  }
	  if(a.getAttribute("title").indexOf("ie") != -1) a.disabled = false;
	  if(a.getAttribute("title").indexOf("accueil") != -1) { 
		  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 switchStyleSheet() {
  if (getActiveStyleSheet() == "Sherbrooke standard") {
    setActiveStyleSheet("Sherbrooke large");
  }
  else {
    setActiveStyleSheet("Sherbrooke standard");
  }
}
*/
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.onunload = function(e) {
	var title = getActiveStyleSheet();
	createCookie("style", title, 365);
}

//Code qui doit être après les fonctions.
var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title);