[thelist] dynamic font size

[Árni Gunnar Ragnarsson]

These are the functions I use. Basically you set the font size on the
body, and every item inherits its font size from the body. When you
change the font size by JavaScript on the body, the rest of the
content follows.

I store the info in a cookie for future visits of the user and for all
the reloads.

function enlargeFont() {
	var size = getCookie("CookieName");
	if (size == null) {
		size = 11;
	}
	size++;
	if (size > 15) {size = 15}
	document.body.style.fontSize = getPercentSize(size)+'%';
	setCookieCookieName",size);
}

function shrinkFont() {
	var size = getCookie("CookieName");
	if (size == null) {
		size = 11;
	}
	size--;
	if (size < 9) {size = 9}
	document.body.style.fontSize = getPercentSize(size)+'%';
	setCookie("CookieName",size);
}

function getPercentSize(size) {
	return (size/16)*100;
}

function initDoc() {
	var fontSize = "11";
	if ((getCookie("CookieName") != null) &&  (getCookie("CookieName") != '')) {
		fontSize =  getCookie("CookieName");
	}
	if (fontSize != 11) {
		document.body.style.fontSize = getPercentSize(fontSize) + "%";
	}
}