/******************************************************************************
* dminilib.js derived from dhtmllib.js by Mike Hall                           *
*                                                                             *
* Copyright 1999 by Mike Hall.                                                *
* Web address: http://www.brainjar.com                                        *
* Last update: February 26, 2000.                                             *
*                                                                             *
* Provides basic functions for DHTML positioned elements which will work on   *
* both Netscape Communicator and Internet Explorer browsers (version 4.0 and  *
* up).                                                                        *
******************************************************************************/

// Determine browser.

var isMinNS4 = (navigator.appName.indexOf("Netscape") >= 0 &&
                parseFloat(navigator.appVersion) >= 4) ? 1 : 0;
var isMinIE4 = (document.all) ? 1 : 0;

var isDOM = (document.getElementById ? true : false); 
var isIE4 = ((document.all && !isDOM) ? true : false);
var isNS4 = (document.layers ? true : false);

//-----------------------------------------------------------------------------
// Layer visibility.
//-----------------------------------------------------------------------------

function hideLayer(layer) {

  if (isMinNS4)
    layer.visibility = "hide";
  if (isMinIE4)
    layer.style.visibility = "hidden";
}

function showLayer(layer) {

  if (isMinNS4)
    layer.visibility = "show";
  if (isMinIE4)
    layer.style.visibility = "visible";
}

//-----------------------------------------------------------------------------
// Layer positioning.
//-----------------------------------------------------------------------------

function moveLayerTo(layer, x, y) {

  if (isMinNS4)
    layer.moveTo(x, y);
  if (isMinIE4) {
    layer.style.left = x;
    layer.style.top  = y;
  }
}

function getLeft(layer) {

  if (isMinNS4)
    return layer.left;
  if (isMinIE4)
    return layer.style.pixelLeft;
  return -1;
}

function getTop(layer) {

  if (isMinNS4)
    return layer.top;
  if (isMinIE4)
    return layer.style.pixelTop;
  return -1;
}

function getPageLeft(layer) {

  var x;

  if (isMinNS4)
    return layer.pageX;
  if (isMinIE4) {
    x = 0;
    while (layer.offsetParent != null) {
      x += layer.offsetLeft;
      layer = layer.offsetParent;
    }
    x += layer.offsetLeft;
    return x;
  }
  return -1;
}

function getPageTop(layer) {

  var y;

  if (isMinNS4)
    return layer.pageY;
  if (isMinIE4) {
    y = 0;
    while (layer.offsetParent != null) {
      y += layer.offsetTop;
      layer = layer.offsetParent;
    }
    y += layer.offsetTop;
    return y;
  }
  return -1;
}

function getWidth(layer) {

  if (isMinNS4) {
    if (layer.document.width)
      return layer.document.width;
    else
      return layer.clip.right - layer.clip.left;
  }
  if (isMinIE4) {
    if (layer.style.pixelWidth)
      return layer.style.pixelWidth;
    else
      return layer.clientWidth;
  }
  return -1;
}

function getHeight(layer) {

  if (isMinNS4) {
    if (layer.document.height)
      return layer.document.height;
    else
      return layer.clip.bottom - layer.clip.top;
  }
  if (isMinIE4) {
    if (layer.style.pixelHeight)
      return layer.style.pixelHeight;
    else
      return layer.clientHeight;
  }
  return -1;
}

function setLayerWidth(layer, width) {

  if (isMinNS4) {
    if (layer.document.width)
      layer.document.width = width;
    else
      layer.clip.right = layer.clip.left + width;
  }
  if (isMinIE4) {
    if (layer.style.pixelWidth)
      layer.style.pixelWidth = width;
    else
      layer.clientWidth = width;
  }
}

function setLayerHeight(layer, height) {

  if (isMinNS4) {
    if (layer.document.height)
      layer.document.height = height;
    else
      layer.clip.bottom = layer.clip.top + height; 
  }
  if (isMinIE4) {
    if (layer.style.pixelHeight)
      layer.style.pixelHeight = height;
    else
      layer.clientHeight = height;
  }
}

//-----------------------------------------------------------------------------
// Layer utilities.
//-----------------------------------------------------------------------------

function getLayer(name) {

  if (isMinNS4)
    return findLayer(name, document);
  if (isMinIE4)
    return eval('document.all.' + name);
  return null;
}

function findLayer(name, doc) {

  var i, layer;

  for (i = 0; i < doc.layers.length; i++) {
    layer = doc.layers[i];
    if (layer.name == name)
      return layer;
    if (layer.document.layers.length > 0)
      if ((layer = findLayer(name, layer.document)) != null)
        return layer;
  }
  return null;
}

//-----------------------------------------------------------------------------
// Window and page properties.
//-----------------------------------------------------------------------------

function getWindowWidth() {
  if (isMinNS4)
    return window.innerWidth;
  if (isMinIE4)
    return document.body.clientWidth;
  return -1;
}

function getWindowHeight() {

  if (isMinNS4)
    return window.innerHeight;
  if (isMinIE4)
    return document.body.clientHeight;
  return -1;
}

//-----------------------------------------------------------------------------
// ETE utilities.
//-----------------------------------------------------------------------------

function getHtmlObj(objId) {
  if (isDOM) return document.getElementById(objId);
  if (isIE4) return document.all[objId];
  if (isNS4) return document.layers[objId];
  return 0;
}


function eterandomnumber(hi)
{
  var himax = hi * 1.0;
  var rnd = Math.floor(Math.random() * himax);
  return rnd;
}