function getCookie(name)
{
	var index=document.cookie.indexOf(name+"=");
	if(index==-1)
		return null;
	index=document.cookie.indexOf("=",index)+1;
	var endstr=document.cookie.indexOf(";",index);
	if(endstr==-1)endstr=document.cookie.length;
		return unescape(document.cookie.substring(index,endstr))
}

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}}}

function SetCookie(cookieName,cookieValue,nDays)
{var today=new Date();var expire=new Date();if(nDays==null||nDays==0)
nDays=1;expire.setTime(today.getTime()+3600000*24*nDays);document.cookie=cookieName+"="+escape(cookieValue)
+";expires="+expire.toGMTString()}

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(); 
setActiveStyleSheet(title);