style_switcher.js

// style_switcher.js
/******************************************************************************
* CSS Style Switcher
******************************************************************************/


function setActiveStyleSheet(title) {

	//document.title = 'Style: ' + title;

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

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

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

window.onload = function(e) {
	var cookie = readCookie("style");
	var title = cookie ? cookie : getPreferredStyleSheet();
	setActiveStyleSheet(title);
}

window.onunload = function(e) {
	var title = getActiveStyleSheet();
	createCookie("style", title, 365);
}



var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title);

var original_title = document.title;

function toggleStyle()
{
	current = getActiveStyleSheet();

	switch (current) {
		case 'Perspective':
			setActiveStyleSheet('No Guides');
			break;
		case 'No Guides':
			setActiveStyleSheet('Fancy');
			break;
		case 'Fancy':
			setActiveStyleSheet('Ponies');
			break;
		case 'Ponies':/*
			setActiveStyleSheet('Large');
			break;
		case 'Large':*/
			setActiveStyleSheet('Small');
			break;
		case 'Small':
			setActiveStyleSheet(null);
			break;
		default:
			setActiveStyleSheet('Perspective');
	}

	var title = getActiveStyleSheet();
	if (title == null) {
		title = 'Default';
	}

	document.title = original_title + ' - Style: ' + title;

	setMenuButtonCaption( title );
}


/* EOF */