/* Code modified from alistapart.com */

var DFLTSIZE = "medium";

function infontsize() {
	active = getActiveStyleSheet();
	switch (active) {
		
		case 'medium': 
			setActiveStyleSheet('larger');
			break;
		
		case 'larger': 
			setActiveStyleSheet('largest');
			break;
		
		case 'largest':
			break;
		
		default:
			setActiveStyleSheet('medium');
			break;
	}
}

function defontsize() {
	active = getActiveStyleSheet();
	switch (active) {
		case 'largest': 
			setActiveStyleSheet('larger');
			break;
			
		case 'larger': 
			setActiveStyleSheet('medium');
			break;
			
		case 'medium': 
			break;
			
			
		default:
			setActiveStyleSheet('medium');
			break;
	}
}

function setActiveStyleSheet(title) {
	var i, el;
	for(i=0; (el = document.getElementsByTagName("link")[i]); i++) {
		if (el.getAttribute("rel").indexOf("style") != -1 && el.getAttribute("title")) {
			el.disabled = true;
			if (el.getAttribute("title") == title) el.disabled = false;
		}
	}
}

function getActiveStyleSheet() {
	var i, el;
	for (i=0; (el = document.getElementsByTagName("link")[i]); i++) {
		if (el.getAttribute("rel").indexOf("style") != -1 && el.getAttribute("title") && !el.disabled) return el.getAttribute("title");
	}
	return null;
}

function setFontSetting() {
	var cookie = getCookie("fontsize");
	var title = cookie ? cookie : DFLTSIZE;
	setActiveStyleSheet(title);
}

function saveFontSetting() {
	var title = getActiveStyleSheet();
	setCookie("fontsize",title,"","/");
}

var cookie = getCookie("fontsize");
var title = cookie ? cookie : DFLTSIZE;
if (title == "null") {
	title = DFLTSIZE;
}

setActiveStyleSheet(title);