function onload_setActiveStyleSheet() {
	var cookie = getCookieValue('style');
	var title = cookie ? cookie : getPreferredStyleSheet();
	setActiveStyleSheet(title);
}
function onunload_setActiveStyleSheet() {
var title = getActiveStyleSheet();
setCookie("style", title, "/", "");
}

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 setActiveStyleSheet(title) {
setCookie("style", 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;
     }
   }
}

function getActiveStyleSheet(){
	return null;
}