// JavaScript Document
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 to read a cookie
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 to erase a cookie
function eraseCookie(name) {
	createCookie(name,"",-1);
}

//function that checks to see if a cookie is set
function check_cookie() 
	{
		var cookie_size = readCookie('text_size');
		if (cookie_size) 
		{
				text = document.getElementById('container');
				text.style.fontSize = cookie_size;
		}
	}