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_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) { //v4.01
  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];}
}

var overlay = {

      click_on_overlay_hide: false,

      show_loading_image: true,

      loading_image: "images/wait.gif",

      $: function(id){
            return document.getElementById(id);
      },

      init: function(){
            var ol_div = document.createElement("div");

            ol_div.id = "overlay";
            ol_div.style.display = "none";
            ol_div.onclick = (this.click_on_overlay_hide)? overlay.hide : null;

            if(this.show_loading_image){
                  var l_img = document.createElement("img");

                  l_img.src = this.loading_image;
                  l_img.style.position = "absolute";
                  l_img.style.top = (((window.innerHeight)? window.innerHeight : document.body.clientHeight) / 2.5) + "px";
                  l_img.style.left = (((window.innerWidth)? window.innerWidth : document.body.clientWidth) / 2.5) + "px";

                  ol_div.appendChild(l_img);
            }

            document.body.appendChild(ol_div);
      },

      show: function(){
            if(this.$("overlay")){
                  this.$("overlay").style.display = "";
            }
      },

      hide: function(){
            if(overlay.$("overlay")){
                  overlay.$("overlay").style.display = "none";
            }
      }

}

function newImage(arg) {
  if (document.images) {
     rslt = new Image();
     rslt.src = arg;
     return rslt;
  }
}

function changeImages() {
  if (document.images && (preloadFlag == true)) {
     for (var i=0; i<changeImages.arguments.length; i+=2) {
        document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
     }
  }
}

var preloadFlag = false;
function preloadImages() {
  if (document.images) {
     wait = newImage("images/wait.gif");

     preloadFlag = true;
  }
}



var overlay = {

      click_on_overlay_hide: false,

      show_loading_image: true,

      loading_image: "images/wait.gif",

      $: function(id){
            return document.getElementById(id);
      },

      init: function(){
            var ol_div = document.createElement("div");

            ol_div.id = "overlay";
            ol_div.style.display = "none";
            ol_div.onclick = (this.click_on_overlay_hide)? overlay.hide : null;

            if(this.show_loading_image){
                  var l_img = document.createElement("img");

                  l_img.src = this.loading_image;
                  l_img.style.position = "absolute";
                  l_img.style.top = (((window.innerHeight)? window.innerHeight : document.body.clientHeight) / 2.5) + "px";
                  l_img.style.left = (((window.innerWidth)? window.innerWidth : document.body.clientWidth) / 2.5) + "px";

                  ol_div.appendChild(l_img);
            }

            document.body.appendChild(ol_div);
      },

      show: function(){
            if(this.$("overlay")){
                  this.$("overlay").style.display = "";
            }
      },

      hide: function(){
            if(overlay.$("overlay")){
                  overlay.$("overlay").style.display = "none";
            }
      }

}



function newImage(arg) {
  if (document.images) {
     rslt = new Image();
     rslt.src = arg;
     return rslt;
  }
}

function changeImages() {
  if (document.images && (preloadFlag == true)) {
     for (var i=0; i<changeImages.arguments.length; i+=2) {
        document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
     }
  }
}

var preloadFlag = false;
function preloadImages() {
  if (document.images) {
     wait = newImage("images/wait.gif");

     preloadFlag = true;
  }
}