// x.js, X v3.15.4, Cross-Browser.com DHTML Library
// Copyright (c) 2004 Michael Foster, Licensed LGPL (gnu.org)

var xVersion='3.15.4',xNN4,xOp7,xOp5or6,xIE4Up,xIE4,xIE5,xUA=navigator.userAgent.toLowerCase();
if (window.opera){
  xOp7=(xUA.indexOf('opera 7')!=-1 || xUA.indexOf('opera/7')!=-1);
  if (!xOp7) xOp5or6=(xUA.indexOf('opera 5')!=-1 || xUA.indexOf('opera/5')!=-1 || xUA.indexOf('opera 6')!=-1 || xUA.indexOf('opera/6')!=-1);
}
else if (document.all && xUA.indexOf('msie')!=-1) {
  xIE4Up=parseInt(navigator.appVersion)>=4;
  xIE4=xUA.indexOf('msie 4')!=-1;
  xIE5=xUA.indexOf('msie 5')!=-1;
}
else if (document.layers) {xNN4=true;}
xMoz=xUA.indexOf('gecko')!=-1;
xMac=xUA.indexOf('mac')!=-1;

function xDef() {
  for(var i=0; i<arguments.length; ++i){if(typeof(arguments[i])=='undefined') return false;}
  return true;
}
function xFunc() {
  for(var i=0; i<arguments.length; ++i){if(typeof(arguments[i])!='function') return false;}
  return true;
}
function xStr() {
  for(var i=0; i<arguments.length; ++i){if(typeof(arguments[i])!='string') return false;}
  return true;
}
function xNum() {
  for(var i=0; i<arguments.length; ++i){if(typeof(arguments[i])!='number') return false;}
  return true;
}

function xGetElementById(e) {
  if(typeof(e)!='string') return e;
  if(document.getElementById) e=document.getElementById(e);
  else if(document.all) e=document.all[e];
  else e=null;
  return e;
}

function xShow(e) { xVisibility(e, 1); }
function xHide(e) { xVisibility(e, 0); }
function xVisibility(e, bShow)
{
  if(!(e=xGetElementById(e))) return;
  if(e.style && xDef(e.style.visibility)) {
    if (xDef(bShow)) e.style.visibility = bShow ? 'visible' : 'hidden';
    return e.style.visibility;
  }
  return null; // or return an empty string ???
}

function xMoveTo(e,iX,iY) {
  xLeft(e,iX);
  xTop(e,iY);
}

function xLeft(e,iX) {
  if(!(e=xGetElementById(e))) return 0;
  var css=xDef(e.style);
  if (css && xStr(e.style.left)) {
    if(xNum(iX)) e.style.left=iX+'px';
    else {
      iX=parseInt(e.style.left);
      if(isNaN(iX)) iX=0;
    }
  }
  else if(css && xDef(e.style.pixelLeft)) {
    if(xNum(iX)) e.style.pixelLeft=iX;
    else iX=e.style.pixelLeft;
  }
  return iX;
}

function xTop(e,iY) {
  if(!(e=xGetElementById(e))) return 0;
  var css=xDef(e.style);
  if(css && xStr(e.style.top)) {
    if(xNum(iY)) e.style.top=iY+'px';
    else {
      iY=parseInt(e.style.top);
      if(isNaN(iY)) iY=0;
    }
  }
  else if(css && xDef(e.style.pixelTop)) {
    if(xNum(iY)) e.style.pixelTop=iY;
    else iY=e.style.pixelTop;
  }
  return iY;
}

function xOpacity(e,uO) {
  if(!(e=xGetElementById(e))) return 100;
  if(xDef(e.filters) && xDef(e.filters.alpha) && xDef(e.filters.alpha.opacity)) {
    if(xNum(uO)) e.filters.alpha.opacity=uO;
    else uO=e.filters.aplha.opacity;
  } else uO = 100;
  return uO;
}

function xResizeTo(e,uW,uH) {
  xWidth(e,uW);
  xHeight(e,uH);
}

function xWidth(e,uW) {
  if(!(e=xGetElementById(e))) return 0;
  if (xNum(uW)) {
    if (uW<0) uW = 0;
    else uW=Math.round(uW);
  }
  else uW=-1;
  var css=xDef(e.style);
  if(css && xDef(e.offsetWidth) && xStr(e.style.width)) {
    if(uW>=0) xSetCW(e, uW);
    uW=e.offsetWidth;
  }
  else if(css && xDef(e.style.pixelWidth)) {
    if(uW>=0) e.style.pixelWidth=uW;
    uW=e.style.pixelWidth;
  }
  return uW;
}

function xHeight(e,uH) {
  if(!(e=xGetElementById(e))) return 0;
  if (xNum(uH)) {
    if (uH<0) uH = 0;
    else uH=Math.round(uH);
  }
  else uH=-1;
  var css=xDef(e.style);
  if(css && xDef(e.offsetHeight) && xStr(e.style.height)) {
    if(uH>=0) xSetCH(e, uH);
    uH=e.offsetHeight;
  }
  else if(css && xDef(e.style.pixelHeight)) {
    if(uH>=0) e.style.pixelHeight=uH;
    uH=e.style.pixelHeight;
  }
  return uH;
}

function xGetCS(ele,sP){return parseInt(document.defaultView.getComputedStyle(ele,'').getPropertyValue(sP));}

function xSetCW(ele,uW){
  var pl=0,pr=0,bl=0,br=0;
  if(xDef(document.defaultView) && xDef(document.defaultView.getComputedStyle)){
    pl=xGetCS(ele,'padding-left');
    pr=xGetCS(ele,'padding-right');
    bl=xGetCS(ele,'border-left-width');
    br=xGetCS(ele,'border-right-width');
  }
  else if(xDef(ele.currentStyle,document.compatMode) && (document.compatMode=='CSS1Compat')){
    pl=parseInt(ele.currentStyle.paddingLeft);
    pr=parseInt(ele.currentStyle.paddingRight);
    bl=parseInt(ele.currentStyle.borderLeftWidth);
    br=parseInt(ele.currentStyle.borderRightWidth);
  }
  else if(xDef(ele.offsetWidth,ele.style.width)){
    ele.style.width=uW+'px';
    pl=ele.offsetWidth-uW;
  }
  if(isNaN(pl)) pl=0; if(isNaN(pr)) pr=0; if(isNaN(bl)) bl=0; if(isNaN(br)) br=0;
  var cssW=uW-(pl+pr+bl+br);
  if(isNaN(cssW)||cssW<0) return;
  else ele.style.width=cssW+'px';
}

function xSetCH(ele,uH){
  var pt=0,pb=0,bt=0,bb=0;
  if(xDef(document.defaultView) && xDef(document.defaultView.getComputedStyle)){
    pt=xGetCS(ele,'padding-top');
    pb=xGetCS(ele,'padding-bottom');
    bt=xGetCS(ele,'border-top-width');
    bb=xGetCS(ele,'border-bottom-width');
  }
  else if(xDef(ele.currentStyle,document.compatMode) && (document.compatMode=='CSS1Compat')){
    pt=parseInt(ele.currentStyle.paddingTop);
    pb=parseInt(ele.currentStyle.paddingBottom);
    bt=parseInt(ele.currentStyle.borderTopWidth);
    bb=parseInt(ele.currentStyle.borderBottomWidth);
  }
  else if(xDef(ele.offsetHeight,ele.style.height)){
    ele.style.height=uH+'px';
    pt=ele.offsetHeight-uH;
  }
  if(isNaN(pt)) pt=0; if(isNaN(pb)) pb=0; if(isNaN(bt)) bt=0; if(isNaN(bb)) bb=0;
  var cssH=uH-(pt+pb+bt+bb);
  if(isNaN(cssH)||cssH<0) return;
  else ele.style.height=cssH+'px';
}

// experimenting with CSS1Compat:
function xClientWidth() {
  var w=0;
  if(xOp5or6) w=window.innerWidth;
  else if(document.compatMode == 'CSS1Compat' && !window.opera && document.documentElement && document.documentElement.clientWidth)
    w=document.documentElement.clientWidth;
  else if(document.body && document.body.clientWidth)
    w=document.body.clientWidth;
  else if(xDef(window.innerWidth,window.innerHeight,document.height)) {
    w=window.innerWidth;
    if(document.height>window.innerHeight) w-=16;
  }
  return w;
}

// experimenting with CSS1Compat:
function xClientHeight() {
  var h=0;
  if(xOp5or6) h=window.innerHeight;
  else if(document.compatMode == 'CSS1Compat' && !window.opera && document.documentElement && document.documentElement.clientHeight)
    h=document.documentElement.clientHeight;
  else if(document.body && document.body.clientHeight)
    h=document.body.clientHeight;
  else if(xDef(window.innerWidth,window.innerHeight,document.width)) {
    h=window.innerHeight;
    if(document.width>window.innerWidth) h-=16;
  }
  return h;
}

function xPageX(e) {
  if (!(e=xGetElementById(e))) return 0;
  var x = 0;
  while (e) {
    if (xDef(e.offsetLeft)) x += e.offsetLeft;
    e = xDef(e.offsetParent) ? e.offsetParent : null;
  }
  return x;
}

function xPageY(e) {
  if (!(e=xGetElementById(e))) return 0;
  var y = 0;
  while (e) {
    if (xDef(e.offsetTop)) y += e.offsetTop;
    e = xDef(e.offsetParent) ? e.offsetParent : null;
  }
  return y;
}

function xScrollLeft(e, bWin) {
  var offset=0;
  if (!xDef(e) || bWin) {
    var w = e || window;
    if(w.document.documentElement && w.document.documentElement.scrollLeft) offset=w.document.documentElement.scrollLeft;
    else if(w.document.body && xDef(w.document.body.scrollLeft)) offset=w.document.body.scrollLeft;
  }
  else {
    e = xGetElementById(e);
    if (e && xNum(e.scrollLeft)) offset = e.scrollLeft;
  }
  return offset;
}

function xScrollTop(e, bWin) {
  var offset=0;
  if (!xDef(e) || bWin) {
    var w = e || window;
    if(w.document.documentElement && w.document.documentElement.scrollTop) offset=w.document.documentElement.scrollTop;
    else if(w.document.body && xDef(w.document.body.scrollTop)) offset=w.document.body.scrollTop;
  }
  else {
    e = xGetElementById(e);
    if (e && xNum(e.scrollTop)) offset = e.scrollTop;
  }
  return offset;
}

function xCallbackChain() {
  this.Callback = null;
  this.Active = false;
}

xCallbackChain.prototype.Add = function( aFunc ) {
  aFunc.NextCallback = this.Callback;
  this.Callback = aFunc;
}

xCallbackChain.prototype.Call = function( aArg ) {
  if (this.Active) return; // prevent recursion
  this.Active = true;
  var cb = this.Callback;
  while (cb) {
    cb(aArg); cb = cb.NextCallback;
  }
  this.Active = false;
}

function xOnLoad( aFunc ) {
  var oldLoadFunc = window.onload;
  window.onload = function() {
    aFunc();
    if (oldLoadFunc) oldLoadFunc();
  }
}

function xOnUnload( aFunc ) {
  var oldUnloadFunc = window.onunload;
  window.onunload = function() {
    aFunc();
    if (oldUnloadFunc) oldUnloadFunc();
  }
}

function xTimeMS() { var date = new Date(); return date.getTime(); }

var xDbgMess = '';
var xDbgSep = '\n';
function xDbg( aMess ) { if (aMess) xDbgMess += aMess + xDbgSep; else alert(xDbgMess); }