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_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_findObj(n, d) { //v4.01
  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 && d.getElementById) x=d.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];}
}

function Querystring(qs) { // optionally pass a querystring to parse
        this.params = new Object()
        this.get=Querystring_get
        
        if (qs == null)
                qs=location.search.substring(1,location.search.length)

        if (qs.length == 0) return

// Turn <plus> back to <space>
// See: http://www.w3.org/TR/REC-html40/interact/forms.html#h-17.13.4.1
        qs = qs.replace(/\+/g, ' ')
        var args = qs.split('&') // parse out name/value pairs separated via &
        
// split out each name=value pair
        for (var i=0;i<args.length;i++) {
                var value;
                var pair = args[i].split('=')
                var name = unescape(pair[0])

                if (pair.length == 2)
                        value = unescape(pair[1])
                else
                        value = name
                
                this.params[name] = value
        }
}

function Querystring_get(key, default_) {
        // This silly looking line changes UNDEFINED to NULL
        if (default_ == null) default_ = null;
        
        var value=this.params[key]
        if (value==null) value=default_;
        
        return value
}