var fontsize = 1;

$(document).ready(function() {

	$('#decrease').get(0).onclick = function() { addFontSize(-0.05) }
	$('#increase').get(0).onclick = function() { addFontSize(0.05) }
	
	/*var savedFontsize = readCookie('fontSize');

	if(savedFontsize != null) {
		fontsize = parseInt(savedFontsize);
		$('container').style.fontSize = fontsize + 'em'
	}*/

});

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);
}

function addFontSize(add) {
	
	fontsize += add;
	
	if(fontsize < 0.8)
		fontsize = 0.8;
		
	if(fontsize > 1.2)
		fontsize = 1.2

	//eraseCookie("fontSize");
	//createCookie('fontSize', fontsize, 30);

	$('#container').get(0).style.fontSize = (fontsize+add) + 'em'
	
}