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 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 + "; path=/";
}

function restoreTextSizeChoice()
{
	var textSize = readCookie('textSize');
	if (textSize)
	{
		document.body.className=textSize;
	}
}

function saveTextSizeChoice()
{
	createCookie('textSize',document.body.className,3);
}

function setTextSize(size)
{
	document.body.className=size + 'Text';
}