/* 
========================================================================================================= CREDITS
Copyright 	: Copyright (c) 2009 JPL & Pinnacle Health. All Rights Reserved.
Author(s) 	: Larry Daughenbaugh - ldaugh@jplcreative.com
Date      	: 3/17/2009
Notes     	: JavaScript file for handling stylesheets and working with the appropriate cookies.
========================================================================================================= CHANGE LOG
Date		Name			Desc
---			---				---
========================================================================================================= BEGIN JAVASCRIPT
*/

/* ====================================================================================================== SET ACTIVE STYLESHEET */
function setActiveStyleSheet(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;
		}
	}
}

/* ====================================================================================================== GET ACTIVE STYLESHEET */
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;
}

/* ====================================================================================================== GET PREFERRED STYLESHEET */
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;
}

/* ====================================================================================================== CREATE COOKIE */
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=/";
}

/* ====================================================================================================== LOOK FOCOOKIE */
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;
}