// x_core.js, part of X, a Cross-Browser.com Javascript Library
// Copyright (C) 2001,2002,2003,2004,2005 Michael Foster - Distributed under the terms of the GNU LGPL - OSI Certified
// File Rev: 5

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 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 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;
}
function xDef() {
  for(var i=0; i<arguments.length; ++i){if(typeof(arguments[i])=='undefined') 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 xShow(e) { return xVisibility(e, 1); }
function xHide(e) { return xVisibility(e, 0); }
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 xDisplay(e, sProp)
{
  if(!(e=xGetElementById(e))) return null;
  if(e.style && xDef(e.style.display)) {
    if (xStr(sProp)) e.style.display = sProp;
    return e.style.display;
  }
  return null;
}
function xZIndex(e,uZ) {
  if(!(e=xGetElementById(e))) return 0;
  if(e.style && xDef(e.style.zIndex)) {
    if(xNum(uZ)) e.style.zIndex=uZ;
    uZ=parseInt(e.style.zIndex);
  }
  return uZ;
}
function xColor(e,sColor) {
  if(!(e=xGetElementById(e))) return '';
  var c='';
  if(e.style && xDef(e.style.color)) {
    if(xStr(sColor)) e.style.color=sColor;
    c=e.style.color;
  }
  return c;
}
function xBackground(e,sColor,sImage) {
  if(!(e=xGetElementById(e))) return '';
  var bg='';
  if(e.style) {
    if(xStr(sColor)) {
      if(!xOp5or6) e.style.backgroundColor=sColor;
      else e.style.background=sColor;
    }
    if(xStr(sImage)) e.style.backgroundImage=(sImage!='')? 'url('+sImage+')' : null;
    if(!xOp5or6) bg=e.style.backgroundColor;
    else bg=e.style.background;
  }
  return bg;
}
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 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;
  }
//  if (xOp7) return y - document.body.offsetTop; // v3.14, temporary hack for opera bug 130324 (reported 1nov03)
  return y;
}
function xOffsetLeft(e) {
  if (!(e=xGetElementById(e))) return 0;
  if (xDef(e.offsetLeft)) return e.offsetLeft;
  else return 0;
}
function xOffsetTop(e) {
  if (!(e=xGetElementById(e))) return 0;
  if (xDef(e.offsetTop)) return e.offsetTop;
  else return 0;
}
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 xHasPoint(ele, iLeft, iTop, iClpT, iClpR, iClpB, iClpL) {
  if (!xNum(iClpT)){iClpT=iClpR=iClpB=iClpL=0;}
  else if (!xNum(iClpR)){iClpR=iClpB=iClpL=iClpT;}
  else if (!xNum(iClpB)){iClpL=iClpR; iClpB=iClpT;}
  var thisX = xPageX(ele), thisY = xPageY(ele);
  return (iLeft >= thisX + iClpL && iLeft <= thisX + xWidth(ele) - iClpR &&
          iTop >=thisY + iClpT && iTop <= thisY + xHeight(ele) - iClpB );
}
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)){
    if(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)){
    if(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';
}
function xClip(e,iTop,iRight,iBottom,iLeft) {
  if(!(e=xGetElementById(e))) return;
  if(e.style) {
    if (xNum(iLeft)) e.style.clip='rect('+iTop+'px '+iRight+'px '+iBottom+'px '+iLeft+'px)';
    else e.style.clip='rect(0 '+parseInt(e.style.width)+'px '+parseInt(e.style.height)+'px 0)';
  }
}
// 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;
}

// x_event.js, part of X, a Cross-Browser.com Javascript Library
// Copyright (C) 2001,2002,2003,2004,2005 Michael Foster - Distributed under the terms of the GNU LGPL - OSI Certified
// File Rev: 4

function xAddEventListener(e,eventType,eventListener,useCapture)
{
  if(!(e=xGetElementById(e))) return;
  eventType=eventType.toLowerCase();
  if((!xIE4Up && !xOp7 /* && !xMoz */) && e==window) {
    if(eventType=='resize') { window.xPCW=xClientWidth(); window.xPCH=xClientHeight(); window.xREL=eventListener; xResizeEvent(); return; }
    if(eventType=='scroll') { window.xPSL=xScrollLeft(); window.xPST=xScrollTop(); window.xSEL=eventListener; xScrollEvent(); return; }
  }
  var eh='e.on'+eventType+'=eventListener';
  if(e.addEventListener) e.addEventListener(eventType,eventListener,useCapture);
  else if(e.attachEvent) e.attachEvent('on'+eventType,eventListener);
  else eval(eh);
}

function xRemoveEventListener(e,eventType,eventListener,useCapture)
{
  if(!(e=xGetElementById(e))) return;
  eventType=eventType.toLowerCase();
  if((!xIE4Up && !xOp7 /* && !xMoz */) && e==window) {
    if(eventType=='resize') { window.xREL=null; return; }
    if(eventType=='scroll') { window.xSEL=null; return; }
  }
  var eh='e.on'+eventType+'=null';
  if(e.removeEventListener) e.removeEventListener(eventType,eventListener,useCapture);
  else if(e.detachEvent) e.detachEvent('on'+eventType,eventListener);
  else eval(eh);
}

function xEvent(evt) // object prototype
{
  this.type = ''; this.target = null; this.relatedTarget = null;
  this.pageX = 0; this.pageY = 0; this.keyCode = 0;
  this.offsetX = 0; this.offsetY = 0;
  var e = evt || window.event;
  if(!e) return;
  if(e.type) this.type = e.type;
  if(e.target) this.target = e.target;
  else if(e.srcElement) this.target = e.srcElement;
  if (e.relatedTarget) this.relatedTarget = e.relatedTarget;
  else if (xIE4Up) {
    if (e.type == 'mouseover') this.relatedTarget = e.fromElement;
    else if (e.type == 'mouseout') this.relatedTarget = e.toElement;
  }
  if(xOp5or6) { this.pageX = e.clientX; this.pageY = e.clientY; }
  else if(xDef(e.pageX,e.pageY)) { this.pageX = e.pageX; this.pageY = e.pageY; }
  else if(xDef(e.clientX,e.clientY)) { this.pageX = e.clientX + xScrollLeft(); this.pageY = e.clientY + xScrollTop(); }

  /* I need someone with IE/Mac to test this section
     as compared to the following commented-out section.
  */
  if(xDef(e.offsetX,e.offsetY)) {
    this.offsetX = e.offsetX;
    this.offsetY = e.offsetY;
    if (xIE4Up && xMac) {
      this.offsetX += xScrollLeft();
      this.offsetY += xScrollTop();
    }
  }
  else if (xDef(e.layerX,e.layerY)) {
    this.offsetX = e.layerX;
    this.offsetY = e.layerY;
  }
  else {
    this.offsetX = this.pageX - xPageX(this.target);
    this.offsetY = this.pageY - xPageY(this.target);
  }

/*
  if (xDef(e.offsetX,e.offsetY) && !(xIE4Up && xMac)) {
    this.offsetX = e.offsetX;
    this.offsetY = e.offsetY;
  }
  else if (xDef(e.layerX,e.layerY)) {
    this.offsetX = e.layerX;
    this.offsetY = e.layerY;
  }
  else {
    this.offsetX = this.pageX - xPageX(this.target);
    this.offsetY = this.pageY - xPageY(this.target);
  }
*/

  if (e.keyCode) { this.keyCode = e.keyCode; } // for moz/fb, if keyCode==0 use which
  else if (xDef(e.which) && e.type.indexOf('key')!=-1) { this.keyCode = e.which; }
}

function xResizeEvent()
{
  if (window.xREL) setTimeout('xResizeEvent()', 250);
  var cw = xClientWidth(), ch = xClientHeight();
  if (window.xPCW != cw || window.xPCH != ch) { window.xPCW = cw; window.xPCH = ch; if (window.xREL) window.xREL(); }
}
function xScrollEvent()
{
  if (window.xSEL) setTimeout('xScrollEvent()', 250);
  var sl = xScrollLeft(), st = xScrollTop();
  if (window.xPSL != sl || window.xPST != st) { window.xPSL = sl; window.xPST = st; if (window.xSEL) window.xSEL(); }
}
function xStopPropagation(evt)
{
  if (evt && evt.stopPropagation) evt.stopPropagation();
  else if (window.event) window.event.cancelBubble = true;
}
function xPreventDefault(evt)
{
  if (evt && evt.preventDefault) evt.preventDefault();
  else if (window.event) window.event.returnValue = false;
}