function changeStyle(newStyle) {
	var linkElements = document.getElementsByTagName("link");
	for(var i = 0; i < linkElements.length; i++) {
		if(linkElements[i].rel == "alternate stylesheet" || linkElements[i].rel == "stylesheet") {
			linkElements[i].disabled = true;
			if(linkElements[i].title == newStyle) {
				linkElements[i].disabled = false;
			}
		}
	}
	writeCookie(newStyle);
}

function setup() {
	changeStyle(readCookie());
}

function writeCookie(newStyle) {
	var date = new Date();
	date.setTime(date.getTime()+(1 * 24 * 60 * 60 * 1000));
	var expires = "; expires="+date.toGMTString();
	document.cookie = "colearyStyle=" + newStyle + expires + "; path=/";
}

function readCookie() {
	var nameEQ = "colearyStyle=";
	var ca = document.cookie.split(';');
	for(var i = 0;i < ca.length; i++) {
		var c = ca[i].replace(/^\s+|\s+$/g, '');
		if (c.indexOf("colearyStyle") == 0) return c.substring(nameEQ.length, c.length);
	}
	return "default";
}

function eraseCookie() {
	writeCookie(colearyStyle, "", -1);
}