/* $Id$ */


// These scripts were originally found on cooltype.com.
// Modified 01/01/1999 by Tobias Ratschiller for linuxapps.com

// Modified 7th June 2000 by Brian Birtles for Mozilla 5.0
// compatibility for phpMyAdmin

// Rewritten and put in a libray 2nd May 2001 by Loïc Chapeaux

// Test passed with:
// - Mozilla 0.8.1-0.9.6 for Windows (js enabled & disabled)
// - IE5, 5.01, 5.5, 6.0 for Windows
// - Netscape 4.75 for Windows

// Test failed (crappy DOM implementations) with:
// - Opera 5.02 for windows: 'getElementsByTagName' is unsupported
// - Opera 5.10 to 5.12 for windows, Opera 5+ for Linux: 'style.display' can't
//   be changed
// - Konqueror 2+: 'style.display' can't be changed

IE4 = (document.all) ? 1 : 0;
NS4 = (document.layers) ? 1 : 0;
NS6 = (document.getElementById) ? 1 : 0;
VERSION4 = (IE4 | NS4 | NS6) ? 1 : 0;
if (!VERSION4) event = null;

var isExpanded   = false;

/**
 * Do reloads the frame if the window has been resized under Netscape4+
 *
 * @access  private
 */
function reDo() {
  if (innerWidth != origWidth || innerHeight != origHeight)
    location.reload(true);
} // end of the 'reDo()' function

/**
 * Positioned element resize bug under NS4+
 */
if (isNS4) {
  var origWidth  = innerWidth;
  var origHeight = innerHeight;
  onresize       = reDo;
}


/**
 * Gets the id of the first collapsible room
 *
 * @param  string  the name of the first collapsible room
 *
 * @return  integer  the index number corresponding to this room
 *
 * @access  public
 */
function nsGetIndex(el) {
  var ind       = null;
  var theLayers = document.layers;
  var layersCnt = theLayers.length;
  for (var i = 0; i < layersCnt; i++) {
    if (theLayers[i].id == el) {
      ind = i;
      break;
    }
  }
  return ind;
} // end of the 'nsGetIndex()' function


/**
 * Positions layers under NS4+
 *
 * @access  public
 */
function nsArrangeList() {
  if (typeof(firstInd) != 'undefined' && firstInd != null) {
    var theLayers = document.layers;
    var layersCnt = theLayers.length;
    var nextY     = theLayers[firstInd].pageY + theLayers[firstInd].document.height;
    for (var i = firstInd + 1; i < layersCnt; i++) {
      if (theLayers[i].visibility != 'hide') {
        theLayers[i].pageY = nextY;
        nextY              += theLayers[i].document.height;
      }
    }
  }
} // end of the 'nsArrangeList()' function


/**
 * Expand databases at startup
 *
 * @access  public
 */
function nsShowAll() {
  var theLayers = document.layers;
  var layersCnt = theLayers.length;
  for (i = firstInd; i < layersCnt; i++) {
    theLayers[i].visibility = 'show';
  }
} // end of the 'nsShowAll()' function


/**
 * Collapses databases at startup
 *
 * @access  public
 */
function initIt()
{
  if (!capable || !isServer)
    return;

  if (isDOM) {
    var tempColl    = document.getElementsByTagName('DIV');
    var tempCollCnt = tempColl.length;
    for (var i = 0; i < tempCollCnt; i++) {
      if (tempColl[i].id == expandedDb)
        tempColl[i].style.display = 'block';
      else if (tempColl[i].className == 'child')
        tempColl[i].style.display = 'none';
    }
  } // end of the DOM case
  else if (isIE4) {
    tempColl        = document.all.tags('DIV');
    var tempCollCnt = tempColl.length;
    for (var i = 0; i < tempCollCnt; i++) {
      if (tempColl(i).id == expandedDb)
        tempColl(i).style.display = 'block';
      else if (tempColl(i).className == 'child')
        tempColl(i).style.display = 'none';
    }
  } // end of the IE4 case
  else if (isNS4) {
    var theLayers  = document.layers;
    var layersCnt  = theLayers.length;
    for (var i = 0; i < layersCnt; i++) {
      if (theLayers[i].id == expandedDb)
        theLayers[i].visibility   = 'show';
      else if (theLayers[i].id.indexOf('Child') != -1)
        theLayers[i].visibility   = 'hide';
      else
        theLayers[i].visibility   = 'show';
    }
    nsArrangeList();
  } // end of the NS4 case
} // end of the 'initIt()' function


/**
 * Collapses/expands a database when the user require this to be done
 *
 * @param  string  the name of the database to act on
 * @param  boolean whether to expand or to collapse the database content
 *
 * @access  public
 */
function expandBase(el, unexpand)
{
  if (!capable)
  {
    return;
  }

  if (isDOM) {
    var whichEl = document.getElementById(el + 'Child');
//alert ('DOM' + whichEl.style.display);
    if (whichEl.style.display == 'none' || whichEl.style.display == '') {
      whichEl.style.display  = 'block';
    }
    else if (unexpand) {
      whichEl.style.display  = 'none';
    }
  } // end of the DOM case
  else if (isIE4) {
    var whichEl = document.all(el + 'Child');
//alert ('IE4' + whichEl.style.display);

    if (whichEl.style.display == 'none' || whichEl.style.display == '') {
      whichEl.style.display  = 'block';
    }
    else if (unexpand) {
      whichEl.style.display  = 'none';
    }
  } // end of the IE4 case
  else if (isNS4) {
    var whichEl = document.layers[el + 'Child'];
    if (whichEl.visibility == 'hide') {
      whichEl.visibility  = 'show';
    }
    else if (unexpand) {
      whichEl.visibility  = 'hide';
      //whichIm.src         = imgClosed.src;
    }
    nsArrangeList();
  } // end of the NS4 case
} // end of the 'expandBase()' function



/**
 * Add styles for positioned layers
 */
if (capable) {
  with (document) {
    // Brian Birtles : This is not the ideal method of doing this
    // but under the 7th June '00 Mozilla build (and many before
    // it) Mozilla did not treat text between <style> tags as
    // style information unless it was written with the one call
    // to write().
    if (isDOM) {
      var lstyle = '<style type="text\/css">'
                 + '<!--'
                 + 'div {color: #000000}'
                 + '.parent {display: block}'
                 + '.child {display: none}'
                 + '\/\/-->'
                 + '<\/style>';
      write(lstyle);
    }
    else {
      writeln('<style type="text\/css">');
      writeln('<!--');
      if (isIE4) {
        writeln('.parent {display: block}');
        writeln('.child {display: none}');
      }
      else {
        writeln('.parent {position: absolute; visibility: hidden}');
        writeln('.child {position: absolute; visibility: hidden}');
      }
      writeln('\/\/-->');
      writeln('<\/style>');
    }
  }
} // end of adding styles


document.onload = initIt;