function tabberObj(argsObj) {
	var arg;
	this.div = null;
	this.classMain = "tabber";
	this.classMainLive = "tabberlive";
	this.classTab = "tabbertab";
	this.classTabDefault = "tabbertabdefault";
	this.classNav = "tabbernav";
	this.classTabHide = "tabbertabhide";
	this.classNavActive = "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) {
this.tabs[tabberIndex].li.className = this.classNavActive;
return this;
};


tabberObj.prototype.navClearActive = function(tabberIndex) {
this.tabs[tabberIndex].li.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);
}
}