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 MM_nbGroup(event, grpName) { //v6.0
var i,img,nbArr,args=MM_nbGroup.arguments;
  if (event == "init" && args.length > 2) {
    if ((img = MM_findObj(args[2])) != null && !img.MM_init) {
      img.MM_init = true; img.MM_up = args[3]; img.MM_dn = img.src;
      if ((nbArr = document[grpName]) == null) nbArr = document[grpName] = new Array();
      nbArr[nbArr.length] = img;
      for (i=4; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
        if (!img.MM_up) img.MM_up = img.src;
        img.src = img.MM_dn = args[i+1];
        nbArr[nbArr.length] = img;
    } }
  } else if (event == "over") {
    document.MM_nbOver = nbArr = new Array();
    for (i=1; i < args.length-1; i+=3) if ((img = MM_findObj(args[i])) != null) {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = (img.MM_dn && args[i+2]) ? args[i+2] : ((args[i+1])?args[i+1] : img.MM_up);
      nbArr[nbArr.length] = img;
    }
  } else if (event == "out" ) {
    for (i=0; i < document.MM_nbOver.length; i++) { img = document.MM_nbOver[i]; img.src = (img.MM_dn) ? img.MM_dn : img.MM_up; }
  } else if (event == "down") {
    nbArr = document[grpName];
    if (nbArr) for (i=0; i < nbArr.length; i++) { img=nbArr[i]; img.src = img.MM_up; img.MM_dn = 0; }
    document[grpName] = nbArr = new Array();
    for (i=2; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = img.MM_dn = (args[i+1])? args[i+1] : img.MM_up;
      nbArr[nbArr.length] = img;
  } }
}

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 pageOffsetLeft(oElement)
{
    var result = 0;
    while (oElement)
    {
        if (oElement.offsetLeft)
            result += oElement.offsetLeft;
        oElement = (oElement.offsetParent) ? oElement.offsetParent : null;
    }
    return result;
}

function pageOffsetTop(oElement)
{
    var result = 0;
    while (oElement)
    {
        if (oElement.offsetTop)
            result += oElement.offsetTop;
        oElement = (oElement.offsetParent) ? oElement.offsetParent : null;
    }
    return result;
}

function hidePopupDefinition()
{
    var oPopupDiv = document.getElementById(strCurrentPopupDefinitionID);
    if (oPopupDiv)
        oPopupDiv.style.visibility = 'hidden';
    strCurrentPopupDefinitionID = null;
}

function leavePopupDefinition()
{
    if (oPopupDefinitionTimer)
        clearTimeout(oPopupDefinitionTimer);
    oPopupDefinitionTimer = setTimeout('hidePopupDefinition()', 1000);
}

function showPopupDefinition(oLink, strTerm)
{
    clearTimeout(oPopupDefinitionTimer);
    hidePopupDefinition();
    strCurrentPopupDefinitionID = strTerm + 'PopupDefinitionDiv';
    var oPopupDiv = document.getElementById(strCurrentPopupDefinitionID);
    if (oPopupDiv)
    {
        oPopupDiv.style.top = (pageOffsetTop(oLink) - oPopupDiv.offsetHeight - 5) + 'px';
        oPopupDiv.style.left = pageOffsetLeft(oLink) + 'px';
        if (pageOffsetLeft(oPopupDiv) + oPopupDiv.offsetWidth > 800)
            oPopupDiv.style.left = (800 - oPopupDiv.offsetWidth) + 'px';
        if (pageOffsetLeft(oPopupDiv) < 0)
            oPopupDiv.style.left = '0px';
        oPopupDiv.style.visibility = 'visible';
    }
}

function initButtons()
{
    var oNextButton = document.getElementById('ctl00_MainContent_NextButton');
    var oPreviousButton = document.getElementById('ctl00_MainContent_PreviousButton');
    
    if (oNextButton)
        oNextButton.disabled = false;
    if (oPreviousButton)
        oPreviousButton.disabled = false;
}

function registerEventHandler(oNode, strEvent, funcHandler)
{
  var funcOldHandler = (oNode[strEvent] ? oNode[strEvent] : function() {});
  oNode[strEvent] = function() { funcOldHandler(); funcHandler(); };
}

var oPopupDefinitionTimer = null;
var strCurrentPopupDefinitionID = null;

registerEventHandler(window, 'onload', initButtons);