/*
simpleTabs v1.3

Author: Fotis Evangelou (Komrade Ltd.)
License: GNU/GPL v2.0
Credits:
- Peter-Paul Koch for the "Cookies" functions. More on: http://www.quirksmode.org/js/cookies.html
- Simon Willison for the "addLoadEvent" function. More on: http://simonwillison.net/2004/May/26/addLoadEvent/
Last updated: June 25th, 2009

RELEASE CHANGELOG:
v1.3
- Fixed "recurring divs in content" bug. If your tab contents included div tags, the tabs would break due to a faulty div tag count. Thanks to Sebastian Lšscher (www.ddfriends.de) for providing the very simple fix!
- Separated all CSS classes at the top of the script, in case you need to modify them to suit your HTML/CSS structure.
v1.2
- Fixed IE syntax error
v1.1
- Namespaced the entire script

FEATURES TO COME:
- Remember last accessed tab for all tab sets on the same page
- Enable tab selection via URL anchor
- Add a loading indicator for the tab panes

*/
// Função para permitir o uso do $ do jQuery
jQuery(document).ready(function($) {
	// Code that uses jQuery's $ can follow here.
	// Main SimpleTabs function
	var kmrSimpleTabs = {
	
		sbContainerClass: "simpleTabs",
		sbNavClass: "simpleTabsNavigation",
		sbContentClass: "simpleTabsContent",
		sbCurrentNavClass: "current",
		sbCurrentTabClass: "currentTab",
		sbIdPrefix: "tabber",	
	
		init: function(){
			if(!document.getElementsByTagName) return false;
			if(!document.getElementById) return false;
			
			var containerDiv = document.getElementsByTagName("div");
		
			for(var i=0; i<containerDiv.length; i++){
				if (containerDiv[i].className == kmrSimpleTabs.sbContainerClass) {
					
					// assign a unique ID for this tab block and then grab it
					containerDiv[i].setAttribute("id",kmrSimpleTabs.sbIdPrefix+[i]);		
					var containerDivId = containerDiv[i].getAttribute("id");
		
					// Navigation
					var ul = containerDiv[i].getElementsByTagName("ul");
					
					for(var j=0; j<ul.length; j++){
						if (ul[j].className == kmrSimpleTabs.sbNavClass) {
		
							var a = ul[j].getElementsByTagName("a");
							for(var k=0; k<a.length; k++){
								a[k].setAttribute("id",containerDivId+"_a_"+k);
								// get current
								if(kmrSimpleTabs.readCookie('simpleTabsCookie')){
									var cookieElements = kmrSimpleTabs.readCookie('simpleTabsCookie').split("_");
									var curTabCont = cookieElements[1];
									var curAnchor = cookieElements[2];
									if(a[k].parentNode.parentNode.parentNode.getAttribute("id")==kmrSimpleTabs.sbIdPrefix+curTabCont){
										if(a[k].getAttribute("id")==kmrSimpleTabs.sbIdPrefix+curTabCont+"_a_"+curAnchor){
											a[k].className = kmrSimpleTabs.sbCurrentNavClass;
										} else {
											a[k].className = "";
										}
									} else {
										a[0].className = kmrSimpleTabs.sbCurrentNavClass;
									}
								} else {
									a[0].className = kmrSimpleTabs.sbCurrentNavClass;
								}
								
								a[k].onclick = function(){
									kmrSimpleTabs.setCurrent(this,'simpleTabsCookie');
									return false;
								}
							}
						}
					}
		
					// Tab Content
					var div = containerDiv[i].getElementsByTagName("div");
					var countDivs = 0;
					for(var l=0; l<div.length; l++){
						if (div[l].className == kmrSimpleTabs.sbContentClass) {
							div[l].setAttribute("id",containerDivId+"_div_"+[countDivs]);	
							if(kmrSimpleTabs.readCookie('simpleTabsCookie')){
								var cookieElements = kmrSimpleTabs.readCookie('simpleTabsCookie').split("_");
								var curTabCont = cookieElements[1];
								var curAnchor = cookieElements[2];		
								if(div[l].parentNode.getAttribute("id")==kmrSimpleTabs.sbIdPrefix+curTabCont){
									if(div[l].getAttribute("id")==kmrSimpleTabs.sbIdPrefix+curTabCont+"_div_"+curAnchor){
										div[l].className = kmrSimpleTabs.sbContentClass+" "+kmrSimpleTabs.sbCurrentTabClass;
									} else {
										div[l].className = kmrSimpleTabs.sbContentClass;
									}
								} else {
									div[0].className = kmrSimpleTabs.sbContentClass+" "+kmrSimpleTabs.sbCurrentTabClass;
								}
							} else {
								div[0].className = kmrSimpleTabs.sbContentClass+" "+kmrSimpleTabs.sbCurrentTabClass;
							}
							countDivs++;
						}
					}	
		
					// End navigation and content block handling	
				}
			}
		},
		
		// Function to set the current tab
		setCurrent: function(elm,cookie){
			
			this.eraseCookie(cookie);
			
			//get container ID
			var thisContainerID = elm.parentNode.parentNode.parentNode.getAttribute("id");
		
			// get current anchor position
			var regExpAnchor = thisContainerID+"_a_";
			var thisLinkPosition = elm.getAttribute("id").replace(regExpAnchor,"");
		
			// change to clicked anchor
			var otherLinks = elm.parentNode.parentNode.getElementsByTagName("a");
			for(var n=0; n<otherLinks.length; n++){
				otherLinks[n].className = "";
			}
			elm.className = kmrSimpleTabs.sbCurrentNavClass;
			
			// change to associated div
			var otherDivs = document.getElementById(thisContainerID).getElementsByTagName("div");
			var RegExpForContentClass = new RegExp(kmrSimpleTabs.sbContentClass);
			for(var i=0; i<otherDivs.length; i++){
				if ( RegExpForContentClass.test(otherDivs[i].className) ) {
					otherDivs[i].className = kmrSimpleTabs.sbContentClass;
				}
			}
			document.getElementById(thisContainerID+"_div_"+thisLinkPosition).className = kmrSimpleTabs.sbContentClass+" "+kmrSimpleTabs.sbCurrentTabClass;
		
			// get Tabs container ID
			var RegExpForPrefix = new RegExp(kmrSimpleTabs.sbIdPrefix);
			var thisContainerPosition = thisContainerID.replace(RegExpForPrefix,"");
			
			// set cookie
			this.createCookie(cookie,'simpleTabsCookie_'+thisContainerPosition+'_'+thisLinkPosition,1);
		},
		
		// Cookies
		createCookie: function(name,value,days) {
			if (days) {
				var date = new Date();
				date.setTime(date.getTime()+(days*24*60*60*1000));
				var expires = "; expires="+date.toGMTString();
			}
			else var expires = "";
			document.cookie = name+"="+value+expires+"; path=/";
		},
		
		readCookie: function(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;
		},
		
		eraseCookie: function(name) {
			this.createCookie(name,"",-1);
		},
	
		// Loader
		addLoadEvent: function(func) {
			var oldonload = window.onload;
			if (typeof window.onload != 'function') {
				window.onload = func;
			} else {
				window.onload = function() {
					if (oldonload) {
						oldonload();
					}
					func();
				}
			}
		}
		
		// END
	};
	
	// Load SimpleTabs
	kmrSimpleTabs.addLoadEvent(kmrSimpleTabs.init);
});