/**
* Styleswitch stylesheet switcher built on jQuery
* Under an Attribution, Share Alike License
* By Kelvin Luck ( http://www.kelvinluck.com/ )
**/

(function($) {
	$(document).ready(function() {
		$('.styleswitch').click(function()
		{
			switchStylestyle(this.getAttribute("rel"));
			switchButton(this.getAttribute("rel"));
			return false;
		});
		var c = readCookie('style');
		if (c) {
			switchStylestyle(c);
			switchButton(c);
		}
	});

	function switchStylestyle(styleName) {
		$('link[@rel*=style][title]').each(function(i) 
		{
			this.disabled = true;
			if (this.getAttribute('title') == styleName) this.disabled = false;
		});
		createCookie('style', styleName, 365);
	}

	function switchButton(styleName) {
		$('.styleswitch').each(function(i) {
			var _img = $('img', this);
			var _src = _img.attr('src').replace('_on.', '.');

			if ($(this).attr('rel') == styleName) {
				var _i = _src.lastIndexOf('.');
				_src = (_src.substring(0, _i) + '_on' + _src.substring(_i, _src.length));
			}

			_img.attr('src', _src);
		});
	}
})(jQuery);

// cookie functions http://www.quirksmode.org/js/cookies.html
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 var 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 eraseCookie(name) {
	createCookie(name,"",-1);
}
// /cookie functions