ns4 = (document.layers)? true:false
ie4 = (document.all)? true:false
ns6 = (document.getElementById && !document.all)? true:false;

// Show/Hide functions for non-pointer layer/objects
function show(id) {
  if (ns4) document.layers[id].visibility = "show"
  else if (ie4) document.all[id].style.visibility = "visible"
  else if (ns6) document.getElementById([id]).style.visibility = "visible"
}

function hide(id) {
  if (ns4) document.layers[id].visibility = "hide"
  else if (ie4) document.all[id].style.visibility = "hidden"
  else if (ns6) document.getElementById([id]).style.visibility = "hidden"
}


function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr;
  for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++)
   x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document;
  if(d.images){
    if(!d.MM_p)
      d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments;
    for(i=0; i<a.length; i++)
      if (a[i].indexOf("#")!=0){
        d.MM_p[j]=new Image;
        d.MM_p[j++].src=a[i];
      }
  }
}

function MM_findObj(n, d) { //v4.0
  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=MM_findObj(n,d.layers[i].document);
  if(!x && document.getElementById)
    x=document.getElementById(n);
  return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments;
  document.MM_sr=new Array;
  for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){
    document.MM_sr[j++]=x;
    if(!x.oSrc)
      x.oSrc=x.src; x.src=a[i+2];
   }
}