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; /* counter */
 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;
}