var userAgent = navigator.userAgent.toLowerCase();

// Figure out what browser is being used
browser = {
	version: (userAgent.match(/.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/) || [])[1],
	safari: /webkit/.test(userAgent),
	opera: /opera/.test(userAgent),
	msie: /msie/.test(userAgent) && !/opera/.test(userAgent),
	mozilla: /mozilla/.test(userAgent) && !/(compatible|webkit)/.test(userAgent)
};


addEvent(window, 'load', navSwitch);
function navSwitch(){
	var lis = id('nav').getElementsByTagName('LI');
	for(var i = 0; i<lis.length; i++){
		var node = lis[i];
		if(node.getElementsByTagName('UL')[0]){
			var unode = node.getElementsByTagName('UL')[0];
			
			node.onclick = function(){
				this.className = 'current';
				for(var a=0; a<lis.length; a++){
					if(this != lis[a]) lis[a].className = '';
				}
				return false;
			}
		} else {
			node.onclick = function(){
				window.location = this.firstChild.href;
			}
		}
	}
}

addEvent(window, 'load', switcher);
function switcher() {
	if(id('switcher')) {
		var tabs = getElementsByClassName(document.getElementById('switcher'), 'a', 'tab');
		for(var i=0; i<tabs.length; i++) {
			tabs[i].onclick = function() {				
				var div = id(this.rel);
				this.className = 'tab active';
				div.className = 'show';
	
						
				for(var x=0; x<tabs.length; x++) {
					if(this !== tabs[x]) { 
						id(tabs[x].rel).className = 'hidden';
						tabs[x].className = 'tab';
					}
				}				
				return false;
			}
		}
	}
}

document.write('<div id="traildiv"></div>');

addEvent(window, 'load', sermonjump);
function sermonjump() {	
	if(id('sermonLists')) { 
		id('sermonLists').onchange = function() {
			if(this.selectedIndex == 1) window.location = 'mcms_page_sermonlist_sort7e16.html?groupby=series';
			if(this.selectedIndex == 2) window.location = 'mcms_page_sermonlist_sortd151.html?groupby=category';
			if(this.selectedIndex == 3) window.location = 'mcms_page_sermonlist_sort2175.html?groupby=month';
			if(this.selectedIndex == 4) window.location = 'mcms_page_sermonlist_sort624f.html?groupby=preacher';
		}
	}
}

function externo(){
	var exts = getElementsByClassName(document, 'a', 'external');
	for(var i=0; i<exts.length; i++) {
		exts[i].onclick = function(){
			window.open(this.href);
			return false;
		}
	}
}
addEvent(window, 'load', externo);

function id() {
  var elements = new Array();

  for (var i = 0; i < arguments.length; i++) {
    var element = arguments[i];
    if (typeof element == 'string')
      element = document.getElementById(element);

    if (arguments.length == 1)
      return element;

    elements.push(element);
  }

  return elements;
}
/*
    Written by Jonathan Snook, http://www.snook.ca/jonathan
    Add-ons by Robert Nyman, http://www.robertnyman.com

*/

function getElementsByClassName(oElm, strTagName, strClassName){	
    var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);	
    var arrReturnElements = new Array();
    strClassName = strClassName.replace(/\-/g, "\\-");
    var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$)");	
    var oElement;
    for(var i=0; i<arrElements.length; i++){
        oElement = arrElements[i];      
        if(oRegExp.test(oElement.className)){
            arrReturnElements.push(oElement);
        }   
    }	
    return (arrReturnElements)
}

// ============ ADD EVENTS ================ //
function addEvent(obj, evType, fn){
    if (obj.addEventListener) {
        obj.addEventListener(evType, fn, true);
        return true;
    } else if (obj.attachEvent) {
        var r = obj.attachEvent("on"+evType, fn);
        return r;
    } else {
	    return false;
    }
}