var popUpWin=0;
function popUpWindow(URLStr, left, top, width, height)
{
  if(popUpWin)
  {
    if(!popUpWin.closed) popUpWin.close();
  }
	if (width > screen.width) width = screen.width - 100;
	if (height > screen.height) height = screen.height - 100;
  popUpWin = open(URLStr, 'popUpWin', 'toolbar=no,location=no,directories=no,status=no,menub ar=no,scrollbars=yes,resizable=no,copyhistory=yes,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');
}

// Example: obj = findObj("image1");
function findObj(theObj, theDoc)
{
  var p, i, foundObj;
  
  if (!theDoc) theDoc = document;
  if ( (p = theObj.indexOf("?")) > 0 && parent.frames.length)
  {
    theDoc = parent.frames[theObj.substring(p+1)].document;
    theObj = theObj.substring(0,p);
  }
  if (!(foundObj = theDoc[theObj]) && theDoc.all) foundObj = theDoc.all[theObj];
  for (i=0; !foundObj && i < theDoc.forms.length; i++) foundObj = theDoc.forms[i][theObj];
  for (i=0; !foundObj && theDoc.layers && i < theDoc.layers.length; i++) foundObj = findObj(theObj,theDoc.layers[i].document);
  if (!foundObj && document.getElementById) foundObj = document.getElementById(theObj);
  
  return foundObj;
}

// * Dependencies * 
// this function requires the following snippets:
// JavaScript/readable_MM_functions/findObj
//
// Accepts a variable number of arguments, in triplets as follows:
// arg 1: simple name of a layer object, such as "Layer1"
// arg 2: ignored (for backward compatibility)
// arg 3: 'hide' or 'show'
// repeat...
//
// Example: showHideLayers(Layer1,'','show',Layer2,'','hide');
function showHideLayers()
{ 
  var i, visStr, obj, args = showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3)
  {
    if ((obj = findObj(args[i])) != null)
    {
      visStr = args[i+2];
      if (obj.style)
      {
        obj = obj.style;
        if(visStr == 'show') visStr = 'visible';
        else if(visStr == 'hide') visStr = 'hidden';
      }
      obj.visibility = visStr;
    }
  }
}

// * Dependencies * 
// this function requires the following snippets:
// JavaScript/readable_MM_functions/findObj
// JavaScript/readable_MM_functions/showHideLayers
// JavaScript/events/getMouseLoc
function moveLayerToMouseLoc(theLayer, offsetH, offsetV)
{
  var obj;
  if (findObj(theLayer)!=null)
  {
    if (document.layers)  //NS
    {
      obj = document.layers[theLayer];
      obj.left = mLoc.x + offsetH;
      obj.top  = mLoc.y + offsetV;
    }
    if (document.getElementById)//IE
    {
      obj = document.getElementById(theLayer).style;
      obj.left = mLoc.x + offsetH;
      obj.top  = mLoc.y + offsetV;
    }
		else if (document.all)//IE
    {
      obj = document.all[theLayer].style;
      obj.left = mLoc.x + offsetH;
      obj.top  = mLoc.y + offsetV;
    }
    showHideLayers(theLayer,'','show');
  }
}

// get mouse location
function Point(x,y)
{
	this.x = x;
	this.y = y;
}

mLoc = new Point(-500,-500);
function getMouseLoc(e)
{
  if (!document.all)  //NS
  {
    mLoc.x = e.pageX;
    mLoc.y = e.pageY;
  }
  else              //IE
  {
    mLoc.x = event.x + document.body.scrollLeft;
    mLoc.y = event.y + document.body.scrollTop;
  }
  return true;
}

//NS init:
if (document.layers)
{
	document.captureEvents(Event.MOUSEMOVE);
	document.onMouseMove = getMouseLoc;
}
else	document.onmousemove = getMouseLoc;