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];}
}

function addEventListener(oObject, sEvent, fnCallback) {
  if ('undefined' != typeof oObject.addEventListener) {
    oObject.addEventListener(sEvent, fnCallback, false);
  } else if ('undefined' != typeof oObject.attachEvent) {
    oObject.attachEvent('on' + sEvent, fnCallback);
  } else if ('function' == typeof oObject['on' + sEvent]) {
    var fnOld = oObject['on' + sEvent];

    oObject['on' + sEvent] = function() {
      fnOld();
      fnCallback();
    };
  } else {
    oObject['on' + sEvent] = fnCallback;
  }

  return true;
}

function ScrollableContent() {
  var iSpeed = 3;

  var containerNode   = null;
  var containerHeight = null;
  var contentNode     = null;
  var contentHeight   = null;
  var downScroller    = null;
  var upScroller      = null;

  var upTO, downTO;

  var downIn = function() {
    upOut();

    if (parseInt(contentNode.style.top) >= containerHeight - contentHeight) {
      contentNode.style.top = (parseInt(contentNode.style.top) - iSpeed) + 'px';

      downTO = window.setTimeout(downIn, 20);
    }

    return true;
  }

  var downOut = function() {
    if (downTO) {
      window.clearTimeout(downTO);
    }

    return true;
  }

  var upIn = function() {
    downOut();

    if (parseInt(contentNode.style.top) < 0) {
      contentNode.style.top = parseInt(contentNode.style.top) + iSpeed + 'px';

      upTO = window.setTimeout(upIn, 20);
    }

    return true;
  }

  var upOut = function() {
    if (upTO) {
      window.clearTimeout(upTO);
    }

    return true;
  }

  // init
  containerNode   = document.getElementById ? document.getElementById('container') : document.all.container;
  containerHeight = containerNode.offsetHeight;
  contentNode     = document.getElementById ? document.getElementById('content') : document.all.content;
  contentHeight   = contentNode.offsetHeight;
  downScroller    = document.getElementById ? document.getElementById('cds') : document.all.cds;
  upScroller      = document.getElementById ? document.getElementById('cus') : document.all.cus;

  if (contentNode) {
    addEventListener(downScroller, 'mouseover', downIn);
    addEventListener(downScroller, 'mouseout', downOut);
    addEventListener(upScroller, 'mouseover', upIn);
    addEventListener(upScroller, 'mouseout', upOut);
  }
}