/*
// JoomlaWorks "Tabs & Slides" Plugin for Joomla! 1.0.x - Version 2.3
// License: http://www.gnu.org/copyleft/gpl.html
// Authors: Fotis Evangelou - George Chouliaras
// Copyright (c) 2006 - 2007 JoomlaWorks.gr - http://www.joomlaworks.gr
// Project page at http://www.joomlaworks.gr - Demos at http://demo.joomlaworks.gr
// Support forum at http://forum.joomlaworks.gr
// ***Last update: August 30th, 2007***
*/

/* Copyright (c) 2006 Patrick Fitzgerald - Version 1.9 */
// Temporarily hide tabs
document.write('<style type="text/css">.jchts_tabber{display:none;}<\/style>');
// Set tab options
var tabberOptions = {
	//start on DOM ready
	'manualStartup': true,
	'cookie': "jchts_tabcookie",
	/* Name to use for the cookie */
	'onLoad': function(argsObj) {
		var t = argsObj.tabber;
		var i;
		if (t.id) {
			t.cookie = t.id + t.cookie;
		}
		i = parseInt(getCookie(t.cookie));
		if (isNaN(i)) {
			return;
		}
		t.tabShow(i);
		//alert('getCookie(' + t.cookie + ') = ' + i);
	},
	'onClick': function(argsObj) {
		var c = argsObj.tabber.cookie;
		var i = argsObj.index;
		//alert('setCookie(' + c + ',' + i + ')');
		setCookie(c, i);
	}
};
// Cookie handling
function setCookie(name, value, expires, path, domain, secure) {
	document.cookie = name + "=" + escape(value) + ((expires) ? "; expires=" + expires.toGMTString() : "") + ((path) ? "; path=" + path: "") + ((domain) ? "; domain=" + domain: "") + ((secure) ? "; secure": "");
}
function getCookie(name) {
	var dc = document.cookie;
	var prefix = name + "=";
	var begin = dc.indexOf("; " + prefix);
	if (begin == -1) {
		begin = dc.indexOf(prefix);
		if (begin != 0) return null;
	} else {
		begin += 2;
	}
	var end = document.cookie.indexOf(";", begin);
	if (end == -1) {
		end = dc.length;
	}
	return unescape(dc.substring(begin + prefix.length, end));
}
function deleteCookie(name, path, domain) {
	if (getCookie(name)) {
		document.cookie = name + "=" + ((path) ? "; path=" + path: "") + ((domain) ? "; domain=" + domain: "") + "; expires=Thu, 01-Jan-70 00:00:01 GMT";
	}
}
// The tabs!
function tabberObj(argsObj) {
	var arg;
	this.div = null;
	this.classMain = "jchts_tabber";
	this.classMainLive = "jchts_tabberlive";
	this.classTab = "jchts_tabbertab";
	this.classTabDefault = "jchts_tabbertabdefault";
	this.classNav = "jchts_tabbernav";
	this.classTabHide = "jchts_tabbertabhide";
	this.classNavActive = "jchts_tabberactive";
	this.titleElements = ['h2', 'h3', 'h4', 'h5', 'h6'];
	this.titleElementsStripHTML = true;
	this.removeTitle = true;
	this.addLinkId = false;
	this.linkIdFormat = '<tabberid>nav<tabnumberone>';
	for (arg in argsObj) {
		this[arg] = argsObj[arg];
	}
	this.REclassMain = new RegExp('\\b' + this.classMain + '\\b', 'gi');
	this.REclassMainLive = new RegExp('\\b' + this.classMainLive + '\\b', 'gi');
	this.REclassTab = new RegExp('\\b' + this.classTab + '\\b', 'gi');
	this.REclassTabDefault = new RegExp('\\b' + this.classTabDefault + '\\b', 'gi');
	this.REclassTabHide = new RegExp('\\b' + this.classTabHide + '\\b', 'gi');
	this.tabs = new Array();
	if (this.div) {
		this.init(this.div);
		this.div = null;
	}
}
tabberObj.prototype.init = function(e) {
	var
	childNodes, i, i2, t, defaultTab = 0,
	DOM_ul, DOM_li, DOM_a, aId, headingElement;
	if (!document.getElementsByTagName) {
		return false;
	}
	if (e.id) {
		this.id = e.id;
	}
	this.tabs.length = 0;
	childNodes = e.childNodes;
	for (i = 0; i < childNodes.length; i++) {
		if (childNodes[i].className && childNodes[i].className.match(this.REclassTab)) {
			t = new Object();
			t.div = childNodes[i];
			this.tabs[this.tabs.length] = t;
			if (childNodes[i].className.match(this.REclassTabDefault)) {
				defaultTab = this.tabs.length - 1;
			}
		}
	}
	DOM_ul = document.createElement("ul");
	DOM_ul.className = this.classNav;
	for (i = 0; i < this.tabs.length; i++) {
		t = this.tabs[i];
		t.headingText = t.div.title;
		if (this.removeTitle) {
			t.div.title = '';
		}
		if (!t.headingText) {
			for (i2 = 0; i2 < this.titleElements.length; i2++) {
				headingElement = t.div.getElementsByTagName(this.titleElements[i2])[0];
				if (headingElement) {
					t.headingText = headingElement.innerHTML;
					if (this.titleElementsStripHTML) {
						t.headingText.replace(/<br>/gi, " ");
						t.headingText = t.headingText.replace(/<[^>]+>/g, "");
					}
					break;
				}
			}
		}
		if (!t.headingText) {
			t.headingText = i + 1;
		}
		DOM_li = document.createElement("li");
		t.li = DOM_li;
		DOM_a = document.createElement("a");
		DOM_a.appendChild(document.createTextNode(t.headingText));
		DOM_a.href = "javascript:void(null);";
		DOM_a.title = t.headingText;
		DOM_a.onclick = this.navClick;
		DOM_a.tabber = this;
		DOM_a.tabberIndex = i;
		if (this.addLinkId && this.linkIdFormat) {
			aId = this.linkIdFormat;
			aId = aId.replace(/<tabberid>/gi, this.id);
			aId = aId.replace(/<tabnumberzero>/gi, i);
			aId = aId.replace(/<tabnumberone>/gi, i + 1);
			aId = aId.replace(/<tabtitle>/gi, t.headingText.replace(/[^a-zA-Z0-9\-]/gi, ''));
			DOM_a.id = aId;
		}
		DOM_li.appendChild(DOM_a);
		DOM_ul.appendChild(DOM_li);
	}
	e.insertBefore(DOM_ul, e.firstChild);
	e.className = e.className.replace(this.REclassMain, this.classMainLive);
	this.tabShow(defaultTab);
	if (typeof this.onLoad == 'function') {
		this.onLoad({
			tabber: this
		});
	}
	return this;
};
tabberObj.prototype.navClick = function(event) {
	var
	rVal, a, self, tabberIndex, onClickArgs;
	a = this;
	if (!a.tabber) {
		return false;
	}
	self = a.tabber;
	tabberIndex = a.tabberIndex;
	a.blur();
	if (typeof self.onClick == 'function') {
		onClickArgs = {
			'tabber': self,
			'index': tabberIndex,
			'event': event
		};
		if (!event) {
			onClickArgs.event = window.event;
		}
		rVal = self.onClick(onClickArgs);
		if (rVal === false) {
			return false;
		}
	}
	self.tabShow(tabberIndex);
	return false;
};
tabberObj.prototype.tabHideAll = function() {
	var i;
	for (i = 0; i < this.tabs.length; i++) {
		this.tabHide(i);
	}
};
tabberObj.prototype.tabHide = function(tabberIndex) {
	var div;
	if (!this.tabs[tabberIndex]) {
		return false;
	}
	div = this.tabs[tabberIndex].div;
	if (!div.className.match(this.REclassTabHide)) {
		div.className += ' ' + this.classTabHide;
	}
	this.navClearActive(tabberIndex);
	return this;
};
tabberObj.prototype.tabShow = function(tabberIndex) {
	var div;
	if (!this.tabs[tabberIndex]) {
		return false;
	}
	this.tabHideAll();
	div = this.tabs[tabberIndex].div;
	div.className = div.className.replace(this.REclassTabHide, '');
	this.navSetActive(tabberIndex);
	if (typeof this.onTabDisplay == 'function') {
		this.onTabDisplay({
			'tabber': this,
			'index': tabberIndex
		});
	}
	return this;
};
tabberObj.prototype.navSetActive = function(tabberIndex) {
    className = this.tabs[tabberIndex].div.className;
	className = className.replace( 'jchts_tabbertab', '' );
	className = className.replace( 'jchts_tabbertabhide', '' );
	className = className + ' ' + this.classNavActive;
	className = className.replace( '  ', ' ' );
	this.tabs[tabberIndex].li.className = className;
	return this;
};
tabberObj.prototype.navClearActive = function(tabberIndex) {
	className = this.tabs[tabberIndex].div.className;
	className = className.replace( 'jchts_tabbertab', '' );
	className = className.replace( 'jchts_tabbertabhide', '' );
	className = className.replace( '  ', ' ' );
	this.tabs[tabberIndex].li.className = className;
	return this;
};
function tabberAutomatic(tabberArgs) {
	var
	tempObj, divs, i;
	if (!tabberArgs) {
		tabberArgs = {};
	}
	tempObj = new tabberObj(tabberArgs);
	divs = document.getElementsByTagName("div");
	for (i = 0; i < divs.length; i++) {
		if (divs[i].className && divs[i].className.match(tempObj.REclassMain)) {
			tabberArgs.div = divs[i];
			divs[i].tabber = new tabberObj(tabberArgs);
		}
	}
	return this;
}
function tabberAutomaticOnLoad(tabberArgs) {
	var oldOnLoad;
	if (!tabberArgs) {
		tabberArgs = {};
	}
	oldOnLoad = window.onload;
	if (typeof window.onload != 'function') {
		window.onload = function() {
			tabberAutomatic(tabberArgs);
		};
	} else {
		window.onload = function() {
			oldOnLoad();
			tabberAutomatic(tabberArgs);
		};
	}
}
if (typeof tabberOptions == 'undefined') {
	tabberAutomaticOnLoad();
} else {
	if (!tabberOptions['manualStartup']) {
		tabberAutomaticOnLoad(tabberOptions);
	}
}

/* Copyright (c) 2006 Alf Magne Kalleland */
var objectIdToSlideDown = false;
var jchts_activeId = false;
function showHideContent(e, inputId) {
	if (!inputId) inputId = this.id;
	inputId = inputId + '';
	var numericId = inputId.replace(/[^0-9]/g, '');
	var answerDiv = document.getElementById('jchts_a' + numericId);
	objectIdToSlideDown = false;
	if (!answerDiv.style.display || answerDiv.style.display == 'none') {
		if (jchts_activeId && jchts_activeId != numericId) {
			objectIdToSlideDown = numericId;
			slideContent(jchts_activeId, (jchts_slideSpeed * -1));
		} else {
			answerDiv.style.display = 'block';
			answerDiv.style.visibility = 'visible';
			slideContent(numericId, jchts_slideSpeed);
		}
	} else {
		slideContent(numericId, (jchts_slideSpeed * -1));
		jchts_activeId = false;
	}
}
function slideContent(inputId, direction) {
	var obj = document.getElementById('jchts_a' + inputId);
	var contentObj = document.getElementById('jchts_ac' + inputId);
	height = obj.clientHeight;
	height = height + direction;
	rerunFunction = true;
	if (height > contentObj.offsetHeight) {
		height = contentObj.offsetHeight;
		rerunFunction = false;
	}
	if (height <= 1) {
		height = 1;
		rerunFunction = false;
	}
	obj.style.height = height + 'px';
	var topPos = height - contentObj.offsetHeight;
	if (topPos > 0) topPos = 0;
	contentObj.style.top = topPos + 'px';
	if (rerunFunction) {
		setTimeout('slideContent(' + inputId + ',' + direction + ')', jchts_timer);
	} else {
		if (height <= 1) {
			obj.style.display = 'none';
			if (objectIdToSlideDown && objectIdToSlideDown != inputId) {
				document.getElementById('jchts_a' + objectIdToSlideDown).style.display = 'block';
				document.getElementById('jchts_a' + objectIdToSlideDown).style.visibility = 'visible';
				slideContent(objectIdToSlideDown, jchts_slideSpeed);
			}
		} else {
			jchts_activeId = inputId;
		}
	}
}
function initShowHideDivs() {
	var divs = document.getElementsByTagName('DIV');
	var divCounter = 1;
	for (var no = 0; no < divs.length; no++) {
		if (divs[no].className == 'jchts_title') {
			divs[no].onclick = showHideContent;
			divs[no].id = 'jchts_q' + divCounter;
			var answer = divs[no].nextSibling;
			while (answer && answer.tagName != 'DIV') {
				answer = answer.nextSibling;
			}
			answer.id = 'jchts_a' + divCounter;
			contentDiv = answer.getElementsByTagName('DIV')[0];
			contentDiv.style.top = 0 - contentDiv.offsetHeight + 'px';
			contentDiv.className = 'jchts_slidecontent';
			contentDiv.id = 'jchts_ac' + divCounter;
			answer.style.display = 'none';
			answer.style.height = '1px';
			divCounter++;
		}
	}
}
function showTabByTitle( title ) {
	var tabset_exists = 1;
	var tabset_nr = 0;
	// keep going trough all tabsets, but stop if the tabset number is not available
	while( tabset_exists ) {
		tabsetnr = tabset_nr;
		// the first tab has no number, so set the tabsetnr string to empty
		if ( tabsetnr == 0 ) { tabsetnr = ''; }
		var tabset = document.getElementById('jchts_tab'+tabsetnr);
		if ( tabset == "undefined" ||  tabset == null ) { 
			// tabset with this number does not exist: stop
			tabset_exists = 0;
			break;
		}
		if ( typeof(tabset['tabber']) == "undefined" ) { 
			// tabber does not exist: stop
			tabset_exists = 0;
			break;
		}
		var tabber = tabset.tabber;
		var tabs = tabber.tabs;
		if ( typeof(title) == 'string' ) {
			// loop through all tabs and match their titles with the given title
			for (var i = 0; i < tabs.length; i++) {
				var tab_title = tabs[i].headingText;
				if ( tab_title == title ) {
					setCookie(tabber.cookie, i);
					tabber.tabShow(i);
					return;
				}
			}
			// if title is not found, try to match in lowercase without spaces
			title = title.replace( /\s/g, '' ).toLowerCase();
			for (var i = 0; i < tabs.length; i++) {
				var tab_title = tabs[i].headingText;
				tab_title = tab_title.replace( /\s/g, '' ).toLowerCase();
				if ( tab_title == title ) {
					setCookie(tabber.cookie, i);
					tabber.tabShow(i);
					return;
				}
			}
			// if title is not found, try to match with only letters/numbers
			title = title.replace( /\s/g, '' ).replace( /[^a-zA-Z0-9]/g, '' ).toLowerCase();
			for (var i = 0; i < tabs.length; i++) {
				var tab_title = tabs[i].headingText;
				tab_title = tab_title.replace( /\s/g, '' ).replace( /[^a-zA-Z0-9]/g, '' ).toLowerCase();
				if ( tab_title == title ) {
					setCookie(tabber.cookie, i);
					tabber.tabShow(i);
					return;
				}
			}
		}
		// if title is not found, try to interpret it as the tab number
		if ( !isNaN( title ) ) {
			if ( tabs[title] !== "undefined" ) {
				setCookie(tabber.cookie, title);
				tabber.tabShow(title);
				return;
			}
		}
		// set tabset number 1 higher
		tabset_nr++;
	}
}