function setActiveStyleSheet(title){

//alert(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(){
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){
var cookie=readCookie("style")
var title=cookie ? cookie : getPreferredStyleSheet()
setActiveStyleSheet(title)}

window.onunload=function(e){
var title=getActiveStyleSheet()
createCookie("style",title,365)}
var cookie=readCookie("style")
var title=cookie ? cookie : getPreferredStyleSheet()