var cssdropdown=
{
  disappeardelay: 250, //set delay in miliseconds before menu disappears onmouseout
  disablemenuclick: true, //when user clicks on a menu item with a drop down menu, disable menu item's link?
  enableswipe: 1, //enable swipe effect? 1 for yes, 0 for no

  //No need to edit beyond here////////////////////////
  dropmenuobj: null, ie: document.all, firefox: document.getElementById&&!document.all, swipetimer: undefined, bottomclip:0,

  getposOffset:function(what, offsettype)
  {
    var totaloffset=(offsettype=="left")? what.offsetLeft : what.offsetTop;
    var parentEl=what.offsetParent;
    while (parentEl!==null)
    {
      totaloffset=(offsettype=="left")? totaloffset+parentEl.offsetLeft : totaloffset+parentEl.offsetTop;
      parentEl=parentEl.offsetParent;
    }
    return totaloffset;
  },

  swipeeffect:function()
  {
    if (this.bottomclip<parseInt(this.dropmenuobj.offsetHeight))
    {
      this.bottomclip+=2+(this.bottomclip/2); //unclip drop down menu visibility gradually
      this.dropmenuobj.style.clip="rect(0 auto "+this.bottomclip+"px 0)";
    }
    else
    {
      return;
    }
    this.swipetimer=setTimeout("cssdropdown.swipeeffect()", 15);
  },

  showhide:function(obj, e)
  {
    if (this.ie || this.firefox)
    {
      this.dropmenuobj.style.left=this.dropmenuobj.style.top="-500px";
    }
    if (e.type=="click" && obj.visibility==hidden || e.type=="mouseover")
    {
      if (this.enableswipe==1)
      {
        if (typeof this.swipetimer!="undefined")
        {
          clearTimeout(this.swipetimer);
        }
        obj.clip="rect(0 auto 0 0)"; //hide menu via clipping
        this.bottomclip=0;
        this.swipeeffect();
      }
      obj.visibility="visible";
    }
    else if (e.type=="click")
    {
      obj.visibility="hidden";
    }
  },

  iecompattest:function()
  {
    return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body;
  },

  clearbrowseredge:function(obj, whichedge)
  {
    var edgeoffset=0;
    var windowedge;
    if (whichedge=="rightedge")
    {
      windowedge=this.ie && !window.opera? this.iecompattest().scrollLeft+this.iecompattest().clientWidth-15 : window.pageXOffset+window.innerWidth-15;
      this.dropmenuobj.contentmeasure=this.dropmenuobj.offsetWidth;
      if (windowedge-this.dropmenuobj.x < this.dropmenuobj.contentmeasure)  //move menu to the left?
      {
        edgeoffset=this.dropmenuobj.contentmeasure-obj.offsetWidth;
      }
    }
    else
    {
      var topedge=this.ie && !window.opera? this.iecompattest().scrollTop : window.pageYOffset;
      windowedge=this.ie && !window.opera? this.iecompattest().scrollTop+this.iecompattest().clientHeight-15 : window.pageYOffset+window.innerHeight-18;
      this.dropmenuobj.contentmeasure=this.dropmenuobj.offsetHeight;
      if (windowedge-this.dropmenuobj.y < this.dropmenuobj.contentmeasure)
      { //move up?
        edgeoffset=this.dropmenuobj.contentmeasure+obj.offsetHeight;
        if ((this.dropmenuobj.y-topedge)<this.dropmenuobj.contentmeasure)
        { //up no good either?
          edgeoffset=this.dropmenuobj.y+obj.offsetHeight-topedge;
        }
      }
    }
    return edgeoffset;
  },

  dropit:function(obj, e, dropmenuID)
  {
    if (this.dropmenuobj!==null)
    { //hide previous menu
      this.dropmenuobj.style.visibility="hidden"; //hide menu
    }
    this.clearhidemenu();
    if (this.ie||this.firefox)
    {
      obj.onmouseout=function(){cssdropdown.delayhidemenu();};
      obj.onclick=function(){return !cssdropdown.disablemenuclick;}; //disable main menu item link onclick?
      this.dropmenuobj=document.getElementById(dropmenuID);
      this.dropmenuobj.onmouseover=function(){cssdropdown.clearhidemenu();};
      this.dropmenuobj.onmouseout=function(){cssdropdown.dynamichide(e);};
      this.dropmenuobj.onclick=function(){cssdropdown.delayhidemenu();};
      this.showhide(this.dropmenuobj.style, e);
      this.dropmenuobj.x=this.getposOffset(obj, "left");
      this.dropmenuobj.y=this.getposOffset(obj, "top");
      this.dropmenuobj.style.left=this.dropmenuobj.x-this.clearbrowseredge(obj, "rightedge")+"px";
      this.dropmenuobj.style.top=this.dropmenuobj.y-this.clearbrowseredge(obj, "bottomedge")+obj.offsetHeight+1+"px";
    }
  },

  dynamichide:function(e)
  {
    this.delayhidemenu();
  },

  delayhidemenu:function()
  {
    this.delayhide=setTimeout("cssdropdown.dropmenuobj.style.visibility='hidden'",this.disappeardelay); //hide menu
  },

  clearhidemenu:function()
  {
    if (this.delayhide!="undefined")
    {
      clearTimeout(this.delayhide);
    }
  },

  startchrome:function()
  {
    for (var ids=0; ids<arguments.length; ids++)
    {
      var menuitems=document.getElementById(arguments[ids]).getElementsByTagName("a");
      for (var i=0; i<menuitems.length; i++)
      {
        if (menuitems[i].getAttribute("rel"))
        {
          menuitems[i].onmouseover=function(e)
          {
            var event=typeof e!="undefined"? e : window.event;
            cssdropdown.dropit(this,event,this.getAttribute("rel"));
          };
        }
      }
    }
  }
};

function updateContent(loc)
{
  window.frames['content'].location.href=loc;
}