/**
* tabs.js
* by Garrett Smith
* http://dhtmlkitchen.com/
*/
if(!window.TabParams)window.TabParams={useClone:false,alwaysShowClone:false,eventType:"click",tabTagName:"*"};
  var tabDisplayNone=Browser.id.OP5?"":"none";
  var contentInheritVis=Browser.id.OP5?"visible":"inherit";
  TabSystem=function TabSystem(el,tabsDiv)
  
  {if(arguments.length==0) return;this.souper=TabSystem.souper;
  this.souper(el);

   if(typeof tabsDiv.onselectstart!="undefined")
      tabsDiv.onselectstart=function(){return false;
      };
  
this.el.onChange=this.el.onchange=function(){};
this.el.onBeforeChange=function(){};
this.defaultActiveTab=null;
this.activeTab=null;
this.relatedTab=null;
this.nextTab=null;this.tabsDiv=tabsDiv;
this.tabParams=this.getTabParams();
this.tabArray=get_elements_with_class_from_classList(this.tabsDiv,this.tabParams.tabTagName,["tab","tabActive"]);
this.tabsClone=null;this.tabs=new Array(0);
      
if(!TabSystem.list[this.id]) TabSystem.list[this.id]=this;

};

TabSystem.list=new Object;TabSystem.extend(EventQueue);
TabSystem.prototype.parentSystem=function(){var root=TabSystem.list["body"];

if(root=this) return null;var parent=findAncestorWithClass(this.el,"content");

if(parent!=null)return TabSystem.list[parent.id];return root;
};

TabSystem.prototype.getTabParams=function()
  {if(!this.tabParams){this.tabParams=new Object;var parentSystem=this.parentSystem();parentTp=(parentSystem==null)?TabParams:parentSystem.getTabParams();
  for(var param in parentTp)
  this.tabParams[param]=parentTp[param];}return this.tabParams;};
  TabSystem.prototype.setEventType=function(eventType){var params=this.getTabParams();
  
  if(params.eventType==eventType) return;
  for(var i=0,len=this.tabArray.length;i<len;i++){var tab=Tab.list[this.tabArray[i].id];
  tab.removeEventListener("on"+params.eventType,tab.depressTab);tab.addEventListener("on"+eventType,tab.depressTab);
}

params.eventType=eventType;};
  function removeTabs(ts){ts.tabsDiv.style.display="none";if(ts.tabsClone)ts.tabsClone.style.display="none";
  var cs=getElementsWithClass(ts.el,"div","content");
  for(var i=0;i<cs.length;i++){cs[i].style.visibility='visible';cs[i].style.display='block';}
}

function undoRemoveTabs(ts){ts.tabsDiv.style.display="block";if(ts.tabsClone)ts.tabsClone.style.display="block";
isTabLayout=true;for(var i=0;i<ts.tabs.length;i++)

if(ts.tabs[i]!=ts.activeTab)
 {ts.tabs[i].content.style.display="none";
  ts.tabs[i].content.style.visibility="hidden";}
}

TabSystem.prototype.setAlwaysShowClone=function(flag){this.getTabParams().alwaysShowClone=flag;
this.showTabsCloneIfNecessary();
};
TabSystem.prototype.addClone=function()

{if(!this.tabsDiv.cloneNode) return;
this.getTabParams().useClone=true;this.tabsClone=this.tabsDiv.cloneNode(true);
if(!this.tabsClone) return;
this.tabsClone.className="tabs tabsClone";
this.el.appendChild(this.tabsClone);
for(var i=0;i<this.tabArray.length;i++)
{var cont=Tab.list[this.tabArray[i].id];
var bt=getDescendantById(this.tabsClone,cont.id);
bt.id="Bottom"+bt.id;
cont.bottomTab=new BottomTab(bt,cont);
}

this.addEventListener("onchange",updateTabsClonePosition);
if(Browser.id.MAC_IE5)

window.setInterval("updateTabsClonePosition()",300);
contentPane.addEventListener("onresize",updateTabsClonePosition);
this.showTabsCloneIfNecessary();
};

tabInit=function tabInit(){if(!Browser.isSupported())return;
var tabsDivs=getElementsWithClass(document.body,"div","tabs");

if(tabsDivs.length==0)
{var tabsDiv0=document.getElementById("tabs");

if(tabsDiv0)tabsDivs=[tabsDiv0];
else return;
}

var tabToDepress;
for(var i=0;i<tabsDivs.length;i++)
{var cnt=findAncestorWithClass(tabsDivs[i],"content")||document.body;
if(!cnt.id)cnt.id="body";
var ts=new TabSystem(cnt,tabsDivs[i]);
var len=ts.tabArray.length;for(var j=0;j<len;new ControllerTab(ts.tabArray[j++],ts));
}

var activeTabs=getCookie("activeTabs"+escape(getFilename()));
if(activeTabs!=null)
{var activeTabArray=activeTabs.split(",");
for(var i=0,len=activeTabArray.length;i<len;i++)
{var tab=Tab.list[activeTabArray[i]];
if(tab)tab.depressTab();}
}

if(Browser.id.MAC_IE5)
{fixDocHeight=function()
{document.documentElement.style.height=document.body.style.height=document.body.clientHeight+"px";
};
contentPane.addEventListener("onresize",fixDocHeight);
setTimeout("fixDocHeight()",500);
}
handleHashNavigation();
deletePageCookie("activeTabs"+escape(getFilename()));
for(id in TabSystem.list){var ts=TabSystem.list[id];
if(ts.tabParams.useClone)ts.addClone();
if(ts.activeTab==null&&ts.defaultActiveTab!=null)ts.defaultActiveTab.depressTab();
}
if(Browser.id.MOZ)repaintFix(document.body);
};

window.id="window";
contentPane=new EventQueue(window);
function handleHashNavigation()
{var id=window.location.hash;
if(id){var el=document.getElementById(id.substring(1));
if(el)var contentEl=findAncestorWithClass(el,"content");
if(contentEl)switchTabs("tab"+contentEl.id.substring("content".length),null,false);
}
}
Tab=function Tab(el,ts)
{if(arguments.length==0) return;
this.souper=Tab.souper;
this.souper(el);
this.content=null;
this.tabSystem=ts;
this.properties=new Object;
this.el.onActivate=function(){};
this.addEventListener("onmouseover",this.hoverTab);
this.addEventListener("onmouseout",this.hoverOff);
this.addEventListener("on"+this.tabSystem.getTabParams().eventType,this.depressTab);
if(Browser.id.IE5_0)positionTabEl(this);
if(!Tab.list[this.id])Tab.list[this.id]=this;
};
Tab.extend(EventQueue);
Tab.list=new Object;
Tab.prototype.setProperty=function(name,value){this.properties[name]=value;
};
Tab.prototype.getContent=function()
{if(this.content==null)
 {var id=this.id.substring(3);
  this.content=document.getElementById("content"+id);
  if(!this.content)
   {alert("tab.id="+this.id+"\n"+"content"+id+" does not exist!");
}
}return this.content;
};
Tab.prototype.getTabSystem=function()
{return this.tabSystem;
};
hoverTab=function hoverTab()
{var tab=Tab.list[this.id];
var activeTab=tab.tabSystem.activeTab;
if(activeTab&&activeTab.id==tab.id)	return;
tab.setClassName("tabHover tab");
if(tab.hoversrc)tab.el.src=tab.hoversrc;
};
hoverOff=function hoverOff()
{var tab=Tab.list[this.id];
 var activeTab=tab.tabSystem.activeTab;
 if(activeTab&&activeTab.id==tab.id)	return;
 tab.setClassName("tab");
 if(tab.normalsrc)tab.el.src=tab.normalsrc;
};
Tab.prototype.toString=function()
{return this.id;
};
function resetTab(tab)
{tab.setClassName("tab");
if(tab.normalsrc)tab.el.src=tab.normalsrc;
tab.getContent().style.display=tabDisplayNone;
tab.getContent().style.visibility="hidden";
}
ControllerTab=function ControllerTab(el,ts)
{if(arguments.length==0) return;
this.souper(el,ts);if(el.tagName.toLowerCase()=="img")
{this.normalsrc=el.src;this.hoversrc=el.getAttribute("hoversrc");
this.activesrc=el.getAttribute("activesrc");
}
if(hasToken(el.className,"tabActive"))
{this.depressTab();
this.tabSystem.defaultActiveTab=this;
}
else{this.getContent().style.display=tabDisplayNone;
this.getContent().style.visibility="hidden";
if(Browser.id.OP5)setTimeout('Tab.list.'+this.id+'.content.style.position="absolute";',50);
}
if(Browser.id.OP5)setTimeout('Tab.list.'+this.id+'.content.style.visibility="hidden";',50);
this.tabSystem.tabs[this.tabSystem.tabs.length]=this;
};
ControllerTab.extend(Tab);
ControllerTab.prototype.setClassName=function(klass)
{this.el.className=klass;
if(this.bottomTab)this.bottomTab.el.className=klass;
};
ControllerTab.prototype.hoverTab=hoverTab;
ControllerTab.prototype.hoverOff=hoverOff;
ControllerTab.prototype.depressTab=function depressTab(e){var tab=Tab.list[this.id];
var tabSystem=tab.tabSystem;
tabSystem.nextTab=tab;
if(tabSystem.activeTab==tab) return;
tabSystem.relatedTab=tabSystem.activeTab;
if(false==tabSystem.el.onBeforeChange()) return;
tab.el.onActivate();
tab.setClassName("tab tabActive");
if(tab.activesrc)
tab.el.src=tab.activesrc;
if(tabSystem.activeTab)resetTab(tabSystem.activeTab);
tabSystem.activeTab=tab;
tabSystem.el.onchange();
if(tabSystem.relatedTab)tabSystem.relatedTab.getContent().style.display="none";
tab.getContent().style.display="block";
tab.getContent().style.visibility=contentInheritVis;
tabSystem.nextTab=null;
if(tabSystem.tabsClone)tabSystem.showTabsCloneIfNecessary();
if(Browser.id.MOZ)updateTabsClonePosition(1);
};
BottomTab=function BottomTab(el,controllerTab)
{if(arguments.length==0) return;
this.souper(el,controllerTab.tabSystem);
this.controllerTab=controllerTab;
};
BottomTab.extend(Tab);
BottomTab.prototype.hoverTab=function()
{this.controllerTab.hoverTab();
};
BottomTab.prototype.hoverOff=function()
{this.controllerTab.hoverOff();
};
BottomTab.prototype.depressTab=function depressClonedTab(E)
{var tabSystem=this.tabSystem;if(tabSystem.activeTab==this.controllerTab) return;
this.controllerTab.depressTab(e);
this.controllerTab.setClassName("tab tabActive");
window.scrollTo(0,(tabSystem.tabsClone.offsetTop+this.el.offsetHeight)-getViewportHeight());
};
function switchTabs(id,e,bReturn){if(!Browser.isSupported())return true;
try
{var tab=Tab.list[id];
tab.depressTab(e);
}
catch(ex){}
if(!bReturn)window.scrollTo(0,0);
return bReturn;
}
updateTabsClonePosition=function updateTabsClonePosition(delay)
{for(var id in TabSystem.list)
if(TabSystem.list[id].tabParams.useClone)setTimeout("TabSystem.list."+id+".setTabsClonePosition();",delay||500);
};
TabSystem.prototype.setTabsClonePosition=function()
{if(!this.activeTab) return;
var adjustment=0;
var contentEl=this.activeTab.content;
if(Browser.id.IE5_0||Browser.id.MAC_IE5)adjustment=0;
else adjustment=2;
this.tabsClone.style.top=(contentEl.offsetHeight+contentEl.offsetTop+adjustment)+px;
};
TabSystem.prototype.showTabsCloneIfNecessary=function()
{if(!this.activeTab) return;
var contentEl=this.activeTab.content;
var contentBottom=contentEl.offsetTop+contentEl.offsetHeight;
var visibility=(contentBottom>getViewportHeight()||this.getTabParams().alwaysShowClone)?"inherit":"hidden";
this.tabsClone.style.visibility=visibility;
this.setTabsClonePosition();
if(Browser.id.MOZ)
{window.scrollBy(0,1);window.scrollBy(0,-1);
}
};
function saveTabSystemState()
{var activeTabList=getElementsWithClass(document.body,TabParams.tabTagName,"tabActive");
for(var i=0;i<activeTabList.length;i++){if(!activeTabList[i].id) continue;
activeTabList[i]=activeTabList[i].id;
setPageCookie("activeTabs"+escape(getFilename()),activeTabList);
}
};
contentPane.addEventListener("onunload",saveTabSystemState);
function positionTabEl(tab)
{var tabs=tab.el.parentNode;
if(tab.tagName=="IMG"||tab.id.indexOf("Bottomtab")==0)return;
if(!tabs.tabOffset)tabs.tabOffset=0;
var tabWidth=Math.round(tab.el.offsetWidth*1.1)+15;
var sty=tab.el.style;
sty.left=tabs.tabOffset+px;
sty.width=tabWidth+px;
sty.textAlign="center";
sty.display="block";
sty.position="absolute";
tabs.tabOffset+=parseInt(tab.el.offsetWidth)+4;
}
if(Browser.id.OP5)window.document.write("<style>.content{position:absolute;}</style>");