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 changeCSS(theSize){

	document.getElementById('style01').className = 'off';
	document.getElementById('style02').className = 'off';
	document.getElementById('style03').className = 'off';

	switch(theSize){
		case 1:
			document.getElementById('styleSwitcher').href = '/css/font-size-1.css';
			document.getElementById('style01').className = 'on';
			createCookie('styleCookie',1,7);
			break;
		case 2:
			document.getElementById('styleSwitcher').href = '/css/font-size-2.css';
			document.getElementById('style02').className = 'on';
			createCookie('styleCookie',2,7);
			break;
		case 3:
			document.getElementById('styleSwitcher').href = '/css/font-size-3.css';
			document.getElementById('style03').className = 'on';
			createCookie('styleCookie',3,7);
			break;
		default:
			document.getElementById('styleSwitcher').href = '/css/font-size-1.css';
			document.getElementById('style01').className = 'on';
			createCookie('styleCookie',1,7);
	}
}

var varStyleCookie = readCookie('styleCookie');
if (varStyleCookie) {
	changeCSS(varStyleCookie*1);
}