function fontsize(event)
{
	// Skip tabs; 9 being the ASCII code for a tab
	var element = document.getElementById(event);
	if(event=='A-')
	{
		$('#A-').removeClass('txt_h1').addClass('txt_changer_selected');
		$('#A').removeClass('txt_changer_selected').addClass('txt_h2');
		$('#AA').removeClass('txt_changer_selected').addClass('txt_h3');
		$('#AAA').removeClass('txt_changer_selected').addClass('txt_h4');
	
		
	}
	if(event=='A')
	{
		$('#A-').removeClass('txt_changer_selected').addClass('txt_h1');
		$('#A').removeClass('txt_h2').addClass('txt_changer_selected');
		$('#AA').removeClass('txt_changer_selected').addClass('txt_h3');
		$('#AAA').removeClass('txt_changer_selected').addClass('txt_h4');
	}
	if(event=='AA')
	{
		$('#A-').removeClass('txt_changer_selected').addClass('txt_h1');
		$('#A').removeClass('txt_changer_selected').addClass('txt_h2');
		$('#AA').removeClass('txt_h3').addClass('txt_changer_selected');
		$('#AAA').removeClass('txt_changer_selected').addClass('txt_h4');
	}
	if(event=='AAA')
	{
		$('#A-').removeClass('txt_changer_selected').addClass('txt_h1');
		$('#A').removeClass('txt_changer_selected').addClass('txt_h2');
		$('#AA').removeClass('txt_changer_selected').addClass('txt_h3');
		$('#AAA').removeClass('txt_h4').addClass('txt_changer_selected');
	}
	
	
	var active = getActiveStyleSheet();
	//$('#'+active).addClass('txt_changer_selected');
	switch (event)
	{
	
		case 'A' : 
			setActiveStyleSheet('A');
		break;

		case 'AA' : 
			setActiveStyleSheet('A+');
		break;
		case 'A-' : 
			setActiveStyleSheet('A-');
		break;
		case 'AAA' : 
			setActiveStyleSheet('A++');
		break;

		
		default :
			setActiveStyleSheet('A');
		break;
	}

	return false;
}


function setActiveStyleSheet(title)
{
	
	var i, a, main;

	for (i = 0; (a = document.getElementsByTagName('link')[i]); i++)
	{
		if (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()
{
	return ('A');
}

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 + style_cookie_settings;
}

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 load_cookie()
{
	var cookie = readCookie('style_cookie');
	var title = cookie ? cookie : getPreferredStyleSheet();
	if(title=='A-')
	{
		$('#A-').addClass('txt_changer_selected');
	}
	else if(title=='A')
	{
		$('#A').addClass('txt_changer_selected');
	}
	else if(title=='A++')
	{
		$('#AAA').addClass('txt_changer_selected');
	}
	else if(title=='A+')
	{
		$('#AA').addClass('txt_changer_selected');
	}
	else{
		$('#A').addClass('txt_changer_selected');
	}
	setActiveStyleSheet(title);
}

function unload_cookie()
{
	var title = getActiveStyleSheet();
	createCookie('style_cookie', title, 365);
}

onload_functions.push('load_cookie()');
onunload_functions.push('unload_cookie()');

/*
var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title);
*/