function setActiveStyleSheet(title) {
	if(title=='null'||!title) title='middle';
	var i, a, main;
	for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
		if(a.getAttribute("rel") && a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
			a.disabled = true;
			if(a.getAttribute("title") == title) a.disabled = false;
		}
	}
	chgBtnStyle(title);
	createCookie("style", title, 365);
}

function getActiveStyleSheet() {
	var i, a;
	for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
	if(a.getAttribute("rel") && 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") && 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;
}
function addInitToOnload(func){
	if ( typeof window.addEventListener != "undefined" ){
		window.addEventListener( "load", func, false );
	}else if ( typeof window.attachEvent != "undefined" ) {
		window.attachEvent( "onload", func );
	}else{
		if ( window.onload != null ){
			var oldOnload = window.onload;
			window.onload = function ( e ) {
			oldOnload( e );
			window[func]();
		};
	}else
		window.onload = func;
	}
}
function chgBtnStyle(title){
	var tags = document.getElementsByTagName('a');
	var i;
	var c;
	for (var i = 0; i < tags.length; i++) {
		if (tags[i].className.indexOf('setStyle', 0) >= 0){
			var t = tags[i].getAttribute('href');
			var t = t.replace(/^.*#/, '');
			var cN = tags[i].className.split(' ');
			if (t == title){
				cN.push('selected');
			}else{
				var new_cN = new Array();
				for(c=0;c<cN.length;c++){
					if (cN[c] != 'selected'){
						new_cN.push(cN[c]);
					}
					cN = new_cN;
				}
			}
			tags[i].className = cN.join(' ');
		}
	}
}
function init(){
	var cookie = readCookie("style");
	var title = cookie ? cookie : getPreferredStyleSheet();
	setActiveStyleSheet(title);
	var tags = document.getElementsByTagName('a');
	var i;
	var t;
	for (var i = 0; i < tags.length; i++) {
		if (tags[i].className.indexOf('setStyle',0) >= 0){
			tags[i].onclick = function(){
				var t = this.getAttribute('href');
				var t = t.replace(/^.*#/, '');
				setActiveStyleSheet(t);
				this.blur();
				return false;
			}
		}
	}
}
addInitToOnload(init);
var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title);