/* Compiled from X 4.17 by XC 1.06 on 09Mar08 */
// xAnimation r3, Copyright 2006-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

//Edits: line 177
//xDrag r8 instead of r7

function xAnimation(r)
{
  this.res = r||10;
}
xAnimation.prototype.init = function(e,t,or,ot,oe,a,b)
{
  var i = this;
  i.e = xGetElementById(e);
  i.t = t;
  i.or=or; i.ot=ot; i.oe=oe;
  i.a = a||0;
  i.v = xAnimation.vf[i.a];
  i.qc = 1 + (b||0);
  i.fq = 1/i.t;
  if (i.a) {
    i.fq *= i.qc * Math.PI;
    if (i.a == 1 || i.a == 2) { i.fq /= 2; }
  }
  else { i.qc = 1; }
  i.xd=i.x2-i.x1; i.yd=i.y2-i.y1; i.zd=i.z2-i.z1;
};
xAnimation.prototype.run = function(r)
{
  var i = this;
  if (!r) i.t1 = new Date().getTime();
  if (!i.tmr) i.tmr = setInterval(
    function() {
      i.et = new Date().getTime() - i.t1;
      if (i.et < i.t) {
        i.f = i.v(i.et*i.fq);
        i.x=i.xd*i.f+i.x1; i.y=i.yd*i.f+i.y1; i.z=i.zd*i.f+i.z1;
        i.or(i);
      }
      else {
        clearInterval(i.tmr); i.tmr = null;
        if (i.qc%2) {i.x=i.x2; i.y=i.y2; i.z=i.z2;}
        else {i.x=i.x1; i.y=i.y1; i.z=i.z1;}
        i.ot(i);
        var rep = false;
        if (typeof i.oe == 'function') rep = i.oe(i);
        else if (typeof i.oe == 'string') rep = eval(i.oe);
        if (rep) i.resume(1);
      }
    }, i.res
  );
};
xAnimation.vf = [
  function(r){return r;},
  function(r){return Math.abs(Math.sin(r));},
  function(r){return 1-Math.abs(Math.cos(r));},
  function(r){return (1-Math.cos(r))/2;}
];
xAnimation.prototype.pause = function()
{
  clearInterval(this.tmr);
  this.tmr = null;
};
xAnimation.prototype.resume = function(fs)
{
  if (typeof this.tmr != 'undefined' && !this.tmr) {
    this.t1 = new Date().getTime();
    if (!fs) {this.t1 -= this.et;}
    this.run(!fs);
  }
};
// xCollapsible r3, Copyright 2004-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xCollapsible(outerEle, bShow) // object prototype
{
  // Constructor

  var container = xGetElementById(outerEle);
  if (!container) {return null;}
  var isUL = container.nodeName.toUpperCase() == 'UL';
  var i, trg, aTgt = xGetElementsByTagName(isUL ? 'UL':'DIV', container);
  for (i = 0; i < aTgt.length; ++i) {
    trg = xPrevSib(aTgt[i]);
    if (trg && (isUL || trg.nodeName.charAt(0).toUpperCase() == 'H')) {
      aTgt[i].xTrgPtr = trg;
      aTgt[i].style.display = bShow ? 'block' : 'none';
      trg.style.cursor = 'pointer';
      trg.xTgtPtr = aTgt[i];
      trg.onclick = trg_onClick;
    }  
  }
  
  // Private

  function trg_onClick()
  {
    var tgt = this.xTgtPtr.style;
    tgt.display = (tgt.display == 'none') ? "block" : "none";
  }

  // Public

  this.displayAll = function(bShow)
  {
    for (var i = 0; i < aTgt.length; ++i) {
      if (aTgt[i].xTrgPtr) {
        aTgt[i].style.display = bShow ? "block" : "none";
      }
    }
  };

  // The unload listener is for IE's circular reference memory leak bug.
  this.onUnload = function()
  {
    if (!container || !aTgt) {return;}
    for (i = 0; i < aTgt.length; ++i) {
      trg = aTgt[i].xTrgPtr;
      if (trg) {
        if (trg.xTgtPtr) {
          trg.xTgtPtr.TrgPtr = null;
          trg.xTgtPtr = null;
        }
        trg.onclick = null;
      }
    }
  };
}


// xEvent r11, Copyright 2001-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xEvent(evt) // object prototype
{
  var e = evt || window.event;
  if (!e) return;
  this.type = e.type;
  this.target = e.target || e.srcElement;
  this.relatedTarget = e.relatedTarget;
  /*@cc_on if (e.type == 'mouseover') this.relatedTarget = e.fromElement;
  else if (e.type == 'mouseout') this.relatedTarget = e.toElement; @*/
  if (xDef(e.pageX)) { this.pageX = e.pageX; this.pageY = e.pageY; }
  else if (xDef(e.clientX)) { this.pageX = e.clientX + xScrollLeft(); this.pageY = e.clientY + xScrollTop(); }
  if (xDef(e.offsetX)) { this.offsetX = e.offsetX; this.offsetY = e.offsetY; }
  else if (xDef(e.layerX)) { this.offsetX = e.layerX; this.offsetY = e.layerY; }
  else { this.offsetX = this.pageX - xPageX(this.target); this.offsetY = this.pageY - xPageY(this.target); }
  this.keyCode = e.keyCode || e.which || 0;
  this.shiftKey = e.shiftKey; this.ctrlKey = e.ctrlKey; this.altKey = e.altKey;
  if (typeof e.type == 'string') {
    if (e.type.indexOf('click') != -1) {this.button = 0;}
    else if (e.type.indexOf('mouse') != -1) {
      this.button = e.button;
      /*@cc_on if (e.button & 1) this.button = 0;
      else if (e.button & 4) this.button = 1;
      else if (e.button & 2) this.button = 2; @*/
    }
  }
}
xLibrary={version:'4.17',license:'GNU LGPL',url:'http://cross-browser.com/'};
// xAnimation.size r2, Copyright 2006-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

xAnimation.prototype.size = function(e,w,h,t,a,b,oe)
{
  var i = this;
  i.x1 = xWidth(e); i.y1 = xHeight(e); // start size
  i.x2 = Math.round(w); i.y2 = Math.round(h); // target size
  i.init(e,t,o,o,oe,a,b);
  i.run();
  function o(i) { xWidth(i.e, Math.round(i.x)); xHeight(i.e, Math.round(i.y)); } // onRun and onTarget
};
// xAddEventListener r8, Copyright 2001-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xAddEventListener(e,eT,eL,cap)
{
  if(!(e=xGetElementById(e)))return;
  //eT=eT.toLowerCase();
  if(e.addEventListener)e.addEventListener(eT,eL,cap||false);
  else if(e.attachEvent)e.attachEvent('on'+eT,eL);
  else {
    var o=e['on'+eT];
    e['on'+eT]=typeof o=='function' ? function(v){o(v);eL(v);} : eL;
  }
}
// xClientHeight r5, Copyright 2001-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xClientHeight()
{
  var v=0,d=document,w=window;
  if((!d.compatMode || d.compatMode == 'CSS1Compat') && !w.opera && d.documentElement && d.documentElement.clientHeight)
    {v=d.documentElement.clientHeight;}
  else if(d.body && d.body.clientHeight)
    {v=d.body.clientHeight;}
  else if(xDef(w.innerWidth,w.innerHeight,d.width)) {
    v=w.innerHeight;
    if(d.width>w.innerWidth) v-=16;
  }
  return v;
}
// xClientWidth r5, Copyright 2001-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xClientWidth()
{
  var v=0,d=document,w=window;
  if((!d.compatMode || d.compatMode == 'CSS1Compat') && !w.opera && d.documentElement && d.documentElement.clientWidth)
    {v=d.documentElement.clientWidth;}
  else if(d.body && d.body.clientWidth)
    {v=d.body.clientWidth;}
  else if(xDef(w.innerWidth,w.innerHeight,d.height)) {
    v=w.innerWidth;
    if(d.height>w.innerHeight) v-=16;
  }
  return v;
}
// xDisableDrag r3, Copyright 2005-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xDisableDrag(id)
{
  xGetElementById(id).xDragEnabled = false;
}
// xDisplay r3, Copyright 2003-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

// This was alternative 1:

function xDisplay(e,s)
{
  if ((e=xGetElementById(e)) && e.style && xDef(e.style.display)) {
    if (xStr(s)) {
      try { e.style.display = s; }
      catch (ex) { e.style.display = ''; } // Will this make IE use a default value
    }                                      // appropriate for the element?
    return e.style.display;
  }
  return null;
}
// xEnableDrag r8, Copyright 2002-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xEnableDrag(id,fS,fD,fE)
{
  var mx = 0, my = 0, el = xGetElementById(id);
  if (el) {
    el.xDragEnabled = true;
    xAddEventListener(el, 'mousedown', dragStart, false);
  }
  // Private Functions
  function dragStart(e)
  {
    if (el.xDragEnabled) {
      var ev = new xEvent(e);
      xPreventDefault(e);
      mx = ev.pageX;
      my = ev.pageY;
      xAddEventListener(document, 'mousemove', drag, false);
      xAddEventListener(document, 'mouseup', dragEnd, false);
      if (fS) {
        fS(el, ev.pageX, ev.pageY, ev);
      }
    }
  }
  function drag(e)
  {
    var ev, dx, dy;
    xPreventDefault(e);
    ev = new xEvent(e);
    dx = ev.pageX - mx;
    dy = ev.pageY - my;
    mx = ev.pageX;
    my = ev.pageY;
    if (fD) {
      fD(el, dx, dy, ev);
    }
    else {
      xMoveTo(el, xLeft(el) + dx, xTop(el) + dy);
    }
  }
  function dragEnd(e)
  {
    var ev = new xEvent(e);
    xPreventDefault(e);
    xRemoveEventListener(document, 'mouseup', dragEnd, false);
    xRemoveEventListener(document, 'mousemove', drag, false);
    if (fE) {
      fE(el, ev.pageX, ev.pageY, ev);
    }
    if (xEnableDrag.drop) {
      xEnableDrag.drop(el, ev);
    }
  }
}

xEnableDrag.drops = []; // static property
// xFirstChild r4, Copyright 2004-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xFirstChild(e,t)
{
  e = xGetElementById(e);
  var c = e ? e.firstChild : null;
  while (c) {
    if (c.nodeType == 1 && (!t || c.nodeName.toLowerCase() == t.toLowerCase())){break;}
    c = c.nextSibling;
  }
  return c;
}
// xGetElementById r2, Copyright 2001-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xGetElementById(e)
{
  if(typeof(e)=='string') {
    if(document.getElementById) e=document.getElementById(e);
    else if(document.all) e=document.all[e];
    else e=null;
  }
  return e;
}
// xGetElementsByTagName r4, Copyright 2002-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xGetElementsByTagName(t,p)
{
  var list = null;
  t = t || '*';
  p = p || document;
  if (typeof p.getElementsByTagName != 'undefined') { // DOM1
    list = p.getElementsByTagName(t);
    if (t=='*' && (!list || !list.length)) list = p.all; // IE5 '*' bug
  }
  else { // IE4 object model
    if (t=='*') list = p.all;
    else if (p.all && p.all.tags) list = p.all.tags(t);
  }
  return list || new Array();
}
// xHasPoint r2, Copyright 2001-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xHasPoint(e,x,y,t,r,b,l)
{
  if (!xNum(t)){t=r=b=l=0;}
  else if (!xNum(r)){r=b=l=t;}
  else if (!xNum(b)){l=r; b=t;}
  var eX = xPageX(e), eY = xPageY(e);
  return (x >= eX + l && x <= eX + xWidth(e) - r &&
          y >= eY + t && y <= eY + xHeight(e) - b );
}
// xHeight r6, Copyright 2001-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xHeight(e,h)
{
  if(!(e=xGetElementById(e))) return 0;
  if (xNum(h)) {
    if (h<0) h = 0;
    else h=Math.round(h);
  }
  else h=-1;
  var css=xDef(e.style);
  if (e == document || e.tagName.toLowerCase() == 'html' || e.tagName.toLowerCase() == 'body') {
    h = xClientHeight();
  }
  else if(css && xDef(e.offsetHeight) && xStr(e.style.height)) {
    if(h>=0) {
      var pt=0,pb=0,bt=0,bb=0;
      if (document.compatMode=='CSS1Compat') {
        var gcs = xGetComputedStyle;
        pt=gcs(e,'padding-top',1);
        if (pt !== null) {
          pb=gcs(e,'padding-bottom',1);
          bt=gcs(e,'border-top-width',1);
          bb=gcs(e,'border-bottom-width',1);
        }
        // Should we try this as a last resort?
        // At this point getComputedStyle and currentStyle do not exist.
        else if(xDef(e.offsetHeight,e.style.height)){
          e.style.height=h+'px';
          pt=e.offsetHeight-h;
        }
      }
      h-=(pt+pb+bt+bb);
      if(isNaN(h)||h<0) return;
      else e.style.height=h+'px';
    }
    h=e.offsetHeight;
  }
  else if(css && xDef(e.style.pixelHeight)) {
    if(h>=0) e.style.pixelHeight=h;
    h=e.style.pixelHeight;
  }
  return h;
}
// xHide r3, Copyright 2001-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xHide(e){return xVisibility(e,0);}
// xInnerHtml r1, Copyright 2001-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xInnerHtml(e,h)
{
  if(!(e=xGetElementById(e)) || !xStr(e.innerHTML)) return null;
  var s = e.innerHTML;
  if (xStr(h)) {e.innerHTML = h;}
  return s;
}
// xLeft r2, Copyright 2001-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

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=xGetComputedStyle(e,'left',1);
      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;
}
// xMoveTo r1, Copyright 2001-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xMoveTo(e,x,y)
{
  xLeft(e,x);
  xTop(e,y);
}
// xNextSib r4, Copyright 2005-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xNextSib(e,t)
{
  e = xGetElementById(e);
  var s = e ? e.nextSibling : null;
  while (s) {
    if (s.nodeType == 1 && (!t || s.nodeName.toLowerCase() == t.toLowerCase())){break;}
    s = s.nextSibling;
  }
  return s;
}
// xOffsetLeft r1, Copyright 2001-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xOffsetLeft(e)
{
  if (!(e=xGetElementById(e))) return 0;
  if (xDef(e.offsetLeft)) return e.offsetLeft;
  else return 0;
}
// xOffsetTop r1, Copyright 2001-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xOffsetTop(e)
{
  if (!(e=xGetElementById(e))) return 0;
  if (xDef(e.offsetTop)) return e.offsetTop;
  else return 0;
}
// xPageX r2, Copyright 2001-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xPageX(e)
{
  var x = 0;
  e = xGetElementById(e);
  while (e) {
    if (xDef(e.offsetLeft)) x += e.offsetLeft;
    e = xDef(e.offsetParent) ? e.offsetParent : null;
  }
  return x;
}
// xPageY r4, Copyright 2001-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xPageY(e)
{
  var y = 0;
  e = xGetElementById(e);
  while (e) {
    if (xDef(e.offsetTop)) y += e.offsetTop;
    e = xDef(e.offsetParent) ? e.offsetParent : null;
  }
  return y;
}
// xParent r1, Copyright 2001-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xParent(e, bNode)
{
  if (!(e=xGetElementById(e))) return null;
  var p=null;
  if (!bNode && xDef(e.offsetParent)) p=e.offsetParent;
  else if (xDef(e.parentNode)) p=e.parentNode;
  else if (xDef(e.parentElement)) p=e.parentElement;
  return p;
}
// xPrevSib r4, Copyright 2005-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xPrevSib(e,t)
{
  e = xGetElementById(e);
  var s = e ? e.previousSibling : null;
  while (s) {
    if (s.nodeType == 1 && (!t || s.nodeName.toLowerCase() == t.toLowerCase())){break;}
    s = s.previousSibling;
  }
  return s;
}
// xResizeTo r1, Copyright 2001-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xResizeTo(e,w,h)
{
  xWidth(e,w);
  xHeight(e,h);
}
// xShow r3, Copyright 2001-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xShow(e) {return xVisibility(e,1);}
// xSlideTo r3, Copyright 2001-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xSlideTo(e, x, y, uTime)
{
  if (!(e=xGetElementById(e))) return;
  if (!e.timeout) e.timeout = 25;
  e.xTarget = x; e.yTarget = y; e.slideTime = uTime; e.stop = false;
  e.yA = e.yTarget - xTop(e); e.xA = e.xTarget - xLeft(e); // A = distance
  if (e.slideLinear) e.B = 1/e.slideTime;
  else e.B = Math.PI / (2 * e.slideTime); // B = period
  e.yD = xTop(e); e.xD = xLeft(e); // D = initial position
  var d = new Date(); e.C = d.getTime();
  if (!e.moving) _xSlideTo(e);
}
function _xSlideTo(e)
{
  if (!(e=xGetElementById(e))) return;
  var now, s, t, newY, newX;
  now = new Date();
  t = now.getTime() - e.C;
  if (e.stop) { e.moving = false; }
  else if (t < e.slideTime) {
    setTimeout("_xSlideTo('"+e.id+"')", e.timeout);

    s = e.B * t;
    if (!e.slideLinear) s = Math.sin(s);
//    if (e.slideLinear) s = e.B * t;
//    else s = Math.sin(e.B * t);

    newX = Math.round(e.xA * s + e.xD);
    newY = Math.round(e.yA * s + e.yD);
    xMoveTo(e, newX, newY);
    e.moving = true;
  }  
  else {
    xMoveTo(e, e.xTarget, e.yTarget);
    e.moving = false;
    if (e.onslideend) e.onslideend();
  }  
}

// xStopPropagation r1, Copyright 2004-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xStopPropagation(evt)
{
  if (evt && evt.stopPropagation) evt.stopPropagation();
  else if (window.event) window.event.cancelBubble = true;
}
// xTop r2, Copyright 2001-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

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=xGetComputedStyle(e,'top',1);
      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;
}
// xVisibility r1, Copyright 2003-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xVisibility(e, bShow)
{
  if(!(e=xGetElementById(e))) return null;
  if(e.style && xDef(e.style.visibility)) {
    if (xDef(bShow)) e.style.visibility = bShow ? 'visible' : 'hidden';
    return e.style.visibility;
  }
  return null;
}

//function xVisibility(e,s)
//{
//  if(!(e=xGetElementById(e))) return null;
//  var v = 'visible', h = 'hidden';
//  if(e.style && xDef(e.style.visibility)) {
//    if (xDef(s)) {
//      // try to maintain backwards compatibility (???)
//      if (xStr(s)) e.style.visibility = s;
//      else e.style.visibility = s ? v : h;
//    }
//    return e.style.visibility;
//    // or...
//    // if (e.style.visibility.length) return e.style.visibility;
//    // else return xGetComputedStyle(e, 'visibility');
//  }
//  else if (xDef(e.visibility)) { // NN4
//    if (xDef(s)) {
//      // try to maintain backwards compatibility
//      if (xStr(s)) e.visibility = (s == v) ? 'show' : 'hide';
//      else e.visibility = s ? v : h;
//    }
//    return (e.visibility == 'show') ? v : h;
//  }
//  return null;
//}
// xWidth r6, Copyright 2001-2007 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xWidth(e,w)
{
  if(!(e=xGetElementById(e))) return 0;
  if (xNum(w)) {
    if (w<0) w = 0;
    else w=Math.round(w);
  }
  else w=-1;
  var css=xDef(e.style);
  if (e == document || e.tagName.toLowerCase() == 'html' || e.tagName.toLowerCase() == 'body') {
    w = xClientWidth();
  }
  else if(css && xDef(e.offsetWidth) && xStr(e.style.width)) {
    if(w>=0) {
      var pl=0,pr=0,bl=0,br=0;
      if (document.compatMode=='CSS1Compat') {
        var gcs = xGetComputedStyle;
        pl=gcs(e,'padding-left',1);
        if (pl !== null) {
          pr=gcs(e,'padding-right',1);
          bl=gcs(e,'border-left-width',1);
          br=gcs(e,'border-right-width',1);
        }
        // Should we try this as a last resort?
        // At this point getComputedStyle and currentStyle do not exist.
        else if(xDef(e.offsetWidth,e.style.width)){
          e.style.width=w+'px';
          pl=e.offsetWidth-w;
        }
      }
      w-=(pl+pr+bl+br);
      if(isNaN(w)||w<0) return;
      else e.style.width=w+'px';
    }
    w=e.offsetWidth;
  }
  else if(css && xDef(e.style.pixelWidth)) {
    if(w>=0) e.style.pixelWidth=w;
    w=e.style.pixelWidth;
  }
  return w;
}