// JavaScript Document
function Js_preloadImages() {
  var d=document; if(d.images){ if(!d.Js_p) d.Js_p=new Array();
    var i,j=d.Js_p.length,a=Js_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.Js_p[j]=new Image; d.Js_p[j++].src=a[i];}}
}

function Js_nbGroup(event, grpName) {
  var i,img,nbArr,args=Js_nbGroup.arguments;
  if (event == "init" && args.length > 2) {
    if ((img = Js_findObj(args[2])) != null && !img.Js_init) {
      img.Js_init = true; img.Js_up = args[3]; img.Js_dn = img.src;
      if ((nbArr = document[grpName]) == null) nbArr = document[grpName] = new Array();
      nbArr[nbArr.length] = img;
      for (i=4; i < args.length-1; i+=2) if ((img = Js_findObj(args[i])) != null) {
        if (!img.Js_up) img.Js_up = img.src;
        img.src = img.Js_dn = args[i+1];
        nbArr[nbArr.length] = img;
    } }
  } else if (event == "over") {
    document.Js_nbOver = nbArr = new Array();
    for (i=1; i < args.length-1; i+=3) if ((img = Js_findObj(args[i])) != null) {
      if (!img.Js_up) img.Js_up = img.src;
      img.src = (img.Js_dn && args[i+2]) ? args[i+2] : ((args[i+1])? args[i+1] : img.Js_up);
      nbArr[nbArr.length] = img;
    }
  } else if (event == "out" ) {
    for (i=0; i < document.Js_nbOver.length; i++) {
      img = document.Js_nbOver[i]; img.src = (img.Js_dn) ? img.Js_dn : img.Js_up; }
  } else if (event == "down") {
    nbArr = document[grpName];
    if (nbArr)
      for (i=0; i < nbArr.length; i++) { img=nbArr[i]; img.src = img.Js_up; img.Js_dn = 0; }
    document[grpName] = nbArr = new Array();
    for (i=2; i < args.length-1; i+=2) if ((img = Js_findObj(args[i])) != null) {
      if (!img.Js_up) img.Js_up = img.src;
      img.src = img.Js_dn = (args[i+1])? args[i+1] : img.Js_up;
      nbArr[nbArr.length] = img;
  } }
}

function Js_swapImgRestore() {
  var i,x,a=document.Js_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function Js_swapImage() {
  var i,j=0,x,a=Js_swapImage.arguments; document.Js_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=Js_findObj(a[i]))!=null){document.Js_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
function Js_showHideLayers() {
  var i,p,v,obj,args=Js_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) 
  with (document) if (getElementById && ((obj=getElementById(args[i]))!=null)) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}
//-->
function Js_findObj(n, d) {
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=Js_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}
function Js_changeProp(objName,x,theProp,theValue) 
{
  var obj = Js_findObj(objName);
  if (obj && (theProp.indexOf("style.")==-1 || obj.style))
  {
    if (theValue == true || theValue == false)
      eval("obj."+theProp+"="+theValue);
    else eval("obj."+theProp+"='"+theValue+"'");
  }
}
var DDSPEED = 10;
var DDTIMER = 15;

// main function to handle the mouse events //
function ddMenu(id,d){
  var h = document.getElementById(id + '-ddheader');
  var c = document.getElementById(id + '-ddcontent');
  clearInterval(c.timer);
  if(d == 1){
    clearTimeout(h.timer);
    if(c.maxh && c.maxh <= c.offsetHeight){return}
    else if(!c.maxh){
      c.style.display = 'block';
      c.style.height = 'auto';
      c.maxh = c.offsetHeight;
      c.style.height = '0px';
    }
    c.timer = setInterval(function(){ddSlide(c,1)},DDTIMER);
  }else{
    h.timer = setTimeout(function(){ddCollapse(c)},50);
  }
}

// collapse the menu //
function ddCollapse(c){
  c.timer = setInterval(function(){ddSlide(c,-1)},DDTIMER);
}

// cancel the collapse if a user rolls over the dropdown //
function cancelHide(id){
  var h = document.getElementById(id + '-ddheader');
  var c = document.getElementById(id + '-ddcontent');
  clearTimeout(h.timer);
  clearInterval(c.timer);
  if(c.offsetHeight < c.maxh){
    c.timer = setInterval(function(){ddSlide(c,1)},DDTIMER);
  }
}

// incrementally expand/contract the dropdown and change the opacity //
function ddSlide(c,d){
  var currh = c.offsetHeight;
  var dist;
  if(d == 1){
    dist = (Math.round((c.maxh - currh) / DDSPEED));
  }else{
    dist = (Math.round(currh / DDSPEED));
  }
  if(dist <= 1 && d == 1){
    dist = 1;
  }
  c.style.height = currh + (dist * d) + 'px';
  c.style.opacity = currh / c.maxh;
  c.style.filter = 'alpha(opacity=' + (currh * 100 / c.maxh) + ')';
  if((currh < 2 && d != 1) || (currh > (c.maxh - 2) && d == 1)){
    clearInterval(c.timer);
  }
}