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 createRequestObj() {
  var obj;
  try {
    obj = new ActiveXObject ( "Msxml2.XMLHTTP" );
  } catch ( e1 ) {
    try {
      obj = new ActiveXObject ( "Microsoft.XMLHTTP" );
    } catch ( e2 ) {
      obj = null;
    }
  }
  if ( !obj ) {
    if ( typeof XMLHttpRequest != "undefined" ) {
      obj = new XMLHttpRequest();
    } else return ( null );
  }
  return ( obj );
}

function sendRequest( obj, url, handler ) {
  obj.open ( "get", url, true );
  obj.setRequestHeader("If-Modified-Since", "Sat, 1 Jan 2000 00:00:00 GMT");
  obj.onreadystatechange = handler;
  obj.send ( null );
}

function showAjaxMessage ( message, type ) {
  document.getElementById('ajax'+type+'Text').innerHTML = message;
  centerDiv('ajax'+type);
}

function hideAjaxMessage ( type ) {
  document.getElementById('ajax'+type).style.visibility="hidden";
}

function centerDiv ( id ) {
  var scroll_top, scroll_left, docwidth, docheight;
  var standardbody=(document.compatMode=="CSS1Compat")? document.documentElement : document.body;
  var dobj = document.getElementById(id);

  if ( document.all && !window.opera ) {
    scroll_top = standardbody.scrollTop;
    scroll_left = standardbody.scrollLeft;
    docwidth = standardbody.clientWidth;
    docheight = standardbody.clientHeight;
  } else {
    scroll_top = window.pageYOffset;
    scroll_left = window.pageXOffset;
    docwidth = window.innerWidth;
    docheight = window.innerHeight;
  }

  var docheightcomplete=(standardbody.offsetHeight>standardbody.scrollHeight)? standardbody.offsetHeight : standardbody.scrollHeight;
  var objwidth=dobj.offsetWidth;
  var objheight=dobj.offsetHeight;
  var topposition=(docheight>objheight)? scroll_top+docheight/2-objheight/2+"px" : scroll_top+10+"px"; //Vertical position of div element: Either centered, or if element height larger than viewpoint height, 10px from top of viewpoint

  dobj.style.left = (docwidth/2)-(objwidth/2)+"px"; //Center div element horizontally
  dobj.style.top = Math.floor(parseInt(topposition))+"px";
  dobj.style.visibility = "visible";

}