$(document).ready(function() {
	// Set stylesheet
	$('.styleswitch').click(function()
	{
		switchStylestyle(this.getAttribute("rel"));
		return false;
	});
	var c = readCookie('style');
	if (c) switchStylestyle(c);
	
	// Set current font size
	var fsNew = readCookie('fontsize');
	fsNew = parseFloat(fsNew, 10);
	if (fsNew) {
		$('body').css('font-size', fsNew);
	} else {
		var fsOriginal = $('body').css('font-size');
		createCookie('fontsizedefault', fsOriginal, 365);
	}
	
	// Reset font size
	$(".resetFont").click(function(){
		var fsOriginal = readCookie('fontsizedefault');
		fsOriginal = parseFloat(fsOriginal, 10)
		$('body').css('font-size', fsOriginal);
		createCookie('fontsize', fsOriginal, 365);
	});
	
	// Resize font size
	$(".resizeFont").click(function(){
		var fsCurrent = $('body').css('font-size');
		var fsCurrentNum = parseFloat(fsCurrent, 10);
		if (this.id == 'fontLarge') {
			var fsNew = fsCurrentNum * 1.2;
		} else {
			var fsNew = fsCurrentNum * 0.8;
		}
		$('body').css('font-size', fsNew);
		createCookie('fontsize', fsNew, 365);
		return false;
	});
});

function switchStylestyle(styleName)
{
	if (styleName != "theme-red" && styleName != "theme-green" && styleName != "theme-black" && styleName != "theme-blue") {
		styleName = "theme-red";
	}

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

// 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