function fontUpsize()
{
	fontResize(1);
	return false;
}
function fontDownsize()
{
	fontResize(-1);
	return false;
}
var currentLevel = 0;
function fontResize(change)
{
	var maxLevel = 2;
	var minLevel = -2;
	if(document.getElementById('content'))
	{
		var content = document.getElementById('content');
		var nextLevel = currentLevel + change;
		if(nextLevel >= minLevel && nextLevel <= maxLevel)
		{
			var p = content.getElementsByTagName('p');
			for(i=0;i<p.length;i++) {
				if(p[i].style.fontSize) {
					var s = parseInt(p[i].style.fontSize.replace("px",""));
			     } else {
			         var s = 12;
			     }
			     s += change;			     
				p[i].style.fontSize = s+"px"
			}
			
			for(var j=1; j<=5; j++)
			{
				var h = content.getElementsByTagName('h' + j);
				for(i=0;i<h.length;i++) {
					if(h[i].style.fontSize) {
						var s = parseInt(h[i].style.fontSize.replace("px",""));
				     } else {
						if(j==1)
							var s = 18;
						if(j==2)
							var s = 16;
						if(j==3)
							var s = 15;
						if(j==4)
							var s = 14;
						if(j==5)
							var s = 13;
				         
				     }
				     s += change;
					h[i].style.fontSize = s+"px"
				}
			}			

			currentLevel = nextLevel;
			createCookie('asbru-fontlevel',currentLevel,1);
		}
	}
}

function setFont()
{
	//createCookie('asbru-fontlevel',"",-1);
	var getLevel = readCookie('asbru-fontlevel');
	if(getLevel != null)
	{		
		fontResize(parseInt(getLevel));
	}
}

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 init()
{
	setFont();
}

window.onload = init;