// fontsize
function setActiveStyleSheet(title) {
	var i, a, main;
	
	var max_link	= document.getElementsByTagName('link').length;
	
	for(i=0; i<max_link; i++) {
		a	= document.getElementsByTagName("link")[i];
		if( a.getAttribute('rel') ){
			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') ){
			if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled){
				return a.getAttribute("title");
			}
		}
	}
	return 'Default';
}

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 'Default';
}

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);