function Tabs(){
  this.tabsArray;
  this.activeTab = 0;
  this.objectName;
  
  this._deactivateAllTabs = function(){
    for(i=0;i<this.tabsArray.length;i++){
      var tmpTab = document.getElementById(this.tabsArray[i][0]);
      tmpTab.className = "";
      var tmpList = document.getElementById(this.tabsArray[i][2]);
      tmpList.style.display = "none";
    }
  }
  this.setActiveTab = function(tabID){
    this._deactivateAllTabs();
    var activeTab = document.getElementById(this.tabsArray[tabID][0]);
    activeTab.className = "active";
    var activeList = document.getElementById(this.tabsArray[tabID][2]);
    activeList.style.display = "block";
  }
  this.displayTabs = function(){
    document.write('<table class="tabs">');
    document.write('  <tr>');
    for(i=0;i<this.tabsArray.length;i++){
      document.write('    <td id="'+this.tabsArray[i][0]+'"><span onclick="'+this.objectName+'.setActiveTab('+i+')">'+this.tabsArray[i][1]+'</span></td>');
    }
    document.write('  </tr>');
    document.write('</table>');
  }
}