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 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);