var DISABLED_ROW_CLASS= "DisabledRow";
var NORMAL_BUTTON_CLASS= "button";
var DEPRESSED_BUTTON_CLASS= "buttondepressed";
var HIGHLIGHT_ROW_CLASS= "highlightRow";

//-----------------------------------------------------
var initialWindowHeight;
var curMenu = null;

function showHelp( menuId )
{
  var menuElement = document.getElementById( menuId );

  // hide any currently visible menu
  if ( curMenu ) curMenu.style.display= "none";

  // if it's a different one that was clicked on, open it
  if ( menuId != "" && curMenu != menuElement )
  {
    menuElement.style.display= "block";
    curMenu = menuElement;

    var offsetFromBottom= menuElement.parentNode.offsetTop + menuElement.offsetTop + menuElement.offsetHeight - initialWindowHeight;

    if ( offsetFromBottom > 0 )
    {
      menuElement.style.top = ( parseInt( menuElement.style.top ) - offsetFromBottom - 4 ) + "px";
    }
  }
  else
  {
    curMenu = null;
  }
}

//-----------------------------------------------------
function disableButtons(arrButtons){
  var oButton;
  for(var i=0;i<arrButtons.length;i++){
    oButton=document.getElementById(arrButtons[i]);
    if(oButton){
      oButton.disabled=true;
      oButton.className='button_d';
    }
  }
}


//-----------------------------------------------------
function enableButtons(arrButtons){
  var oButton;
  for(var i=0;i<arrButtons.length;i++){
    oButton=document.getElementById(arrButtons[i]);
    if(oButton){
      oButton.disabled=false;
      oButton.className='button';
    }
  }
}


//-----------------------------------------------------
function hl(tr){
  tr.className=HIGHLIGHT_ROW_CLASS;
}


//-----------------------------------------------------
function uhl(tr){
  tr.className='';
}


/*************************************************
 Popup Menus

 To attach a popup menu to a button, use the following code:
 If there's multiple menus on one page, you obviously need to have a different
 menuId for each one.

 <SPAN CLASS="PopupMenuContainer">

   <INPUT TYPE="button" CLASS="button" onClick="popupMenuOpen( this, 'menuId' );" VALUE="Button Label">

   <DIV CLASS="PopupMenu" ID="menuId">

     <A HREF="item1.asp">Item 1</A>
     <A HREF="item2.asp">Item 2</A>
     <A HREF="item3.asp">Item 3</A>

   </DIV>

 </SPAN>

 */
//-----------------------------------------------------
var popupMenuTimeoutId;
var popupMenuActiveButton= null;
var popupMenuActiveMenu= null;

//-----------------------------------------------------
// button - reference to the button the menu is attached to
// menuName - ID for the DIV containing the menu
function popupMenuOpen( button, menuName )
{
  if ( popupMenuActiveButton && popupMenuActiveButton == button )
  {
    popupMenuOut();
    return;
  }
  else if ( popupMenuActiveButton )
  {
    popupMenuOut();
  }

  var menu= document.getElementById( menuName );
  menu.style.top= button.clientHeight + button.offsetTop + 4 + "px";

  popupMenuActiveMenu= menu;
  popupMenuActiveButton= button;

  // IE has a bug preventing an absolutely positioned div appearing over a select element (due to using
  // Win32 to render the select). This fix involves adding an iframe that covers the menu but floats
  // just behind it (iframes are rendered after everything else, including selects).
  if ( window.navigator.appName == "Microsoft Internet Explorer" )
  {
    // I don't really understand why this line works, but it causes the iframe to be the right size
    menu.style.height= "1px";

    // Add an iframe to the menu
    //    menu.innerHTML = ( '<iframe src="menubg.asp" scrolling="no" frameborder="0"></iframe>' + menu.innerHTML );

    // Need to allow the browser time to initialise the iframe before actually displaying the menu.
    setTimeout( "popupMenuOpen2()", 10 );
  }
  else
  {
    popupMenuOpen2();
  }
}

function popupMenuOpen2()
{
  // check if the iframe's initialised
  if ( popupMenuActiveMenu.firstChild.nodeName == "IFRAME" &&
       !popupMenuActiveMenu.firstChild.contentWindow.document.body )
  {
    // not ready - schedule another attempt
    setTimeout( "popupMenuOpen2()", 10 );
    return;
  }

  popupMenuActiveButton.className= "buttondepressed";
  popupMenuActiveMenu.style.display= "block";

  popupMenuActiveMenu.onmouseout= function() { popupMenuTimeoutId= setTimeout( "popupMenuOut()", 700 ); };
  popupMenuActiveMenu.onmouseover= function() { clearTimeout( popupMenuTimeoutId ); };
  popupMenuActiveMenu.onclick= function() { popupMenuOut(); };
  popupMenuActiveButton.onmouseout= function() { popupMenuTimeoutId= setTimeout( "popupMenuOut()", 700 ); };
  popupMenuActiveButton.onmouseover= function() { clearTimeout( popupMenuTimeoutId ); };
}


//-----------------------------------------------------
function popupMenuOut()
{
  clearTimeout( popupMenuTimeoutId );

  if ( popupMenuActiveMenu )
  {
    popupMenuActiveMenu.style.display= "none";
    popupMenuActiveMenu.onmouseout= null;
    popupMenuActiveMenu.onmouseover= null;
    popupMenuActiveMenu.onclick= null;
  }

  if ( popupMenuActiveButton )
  {
    popupMenuActiveButton.className= "button";
    popupMenuActiveButton.onmouseout= null;
    popupMenuActiveButton.onmouseover= null;
  }

  popupMenuActiveButton= null;
  popupMenuActiveMenu= null;
}


var DOMInspectorWindow;

//-----------------------------------------------------
// basic DOM inspector
// node - String containing name of node to inspect e.g. "document.all['elementId']"
function inspectDOM( node )
{
  var prop, propString, value;

  propString = "<h2>" + node + ":</h2>\n" +
               "<h3>Type: " + eval( node + ".nodeName" ) + "</h3>\n";

  for ( prop in eval( node ) )
  {
    value= eval( node + "." + prop );

    if ( (value + "") == "[object]" ) value= "<a href=\"javascript:window.opener.inspectDOM(&quot;" + node +"." + prop + "&quot;);\">[object]</a>";

    propString += prop +"= " + value + "<br>\n";
  }

  if ( !DOMInspectorWindow )
  {
    DOMInspectorWindow= window.open( "" );
    DOMInspectorWindow.document.write( "<html><body style='font-size:12;'>" + propString + "</body></html>" );
  }
  else
  {
    DOMInspectorWindow.document.body.innerHTML= propString;
  }
}







//-----------------------------------------------------
/*
 * Allows a checkbox to be toggled by clicking anywhere in the table cell
 * containing the checkbox. Attach this function to the cell's onclick
 * event handler, passing in the unique id for the checkbox and the event object.
 */
function toggleCheckBox( cbName, e )
{
  var target;
  if (e.target) target = e.target;
  else if (e.srcElement) target = e.srcElement;

  cbElement= document.getElementById( cbName );

  // Don't toggle if checkbox is disabled
  if ( !cbElement.disabled )
  {
    // Don't toggle if the checkbox itself was clicked on,
    // as the checkbox will automatically toggle

    if ( target != cbElement )
    {
      cbElement.checked= cbElement.checked ? false : true;
    }

    pageUpdated();
  }
}



//-----------------------------------------------------
/*
 * For highlighting rows as the pointer passes over them to
 * make it easier to see which row you're clicking on.
 * Add onMouseOver="highlightRow( this );" to each row.
 * Add onMouseOut="highlightRow();" to the table to prevent
 * last hovered row remaining highlighted
 */
var highlightedRow= null;

function highlightRow( row )
{
  // unlight previously lit row
  if ( highlightedRow && ( highlightedRow.className == HIGHLIGHT_ROW_CLASS ) ) highlightedRow.className= "";

  if ( row )
  {
    if ( row.className == "" )
    {
      row.className= HIGHLIGHT_ROW_CLASS;
      highlightedRow= row;
    }
    else
    {
      highlightedRow= null;
    }
  }
}








//------------------------------------------------------------
// menuBar functions

//----------------------------------------------------------------------------
// Code to determine the browser and version.
//----------------------------------------------------------------------------

function Browser() {

  var ua, s, i;

  this.isIE    = false;  // Internet Explorer
  this.isOP    = false;  // Opera
  this.isNS    = false;  // Netscape
  this.version = null;

  ua = navigator.userAgent;

  s = "Opera";
  if ((i = ua.indexOf(s)) >= 0) {
    this.isOP = true;
    this.version = parseFloat(ua.substr(i + s.length));
    return;
  }

  s = "Netscape6/";
  if ((i = ua.indexOf(s)) >= 0) {
    this.isNS = true;
    this.version = parseFloat(ua.substr(i + s.length));
    return;
  }

  // Treat any other "Gecko" browser as Netscape 6.1.

  s = "Gecko";
  if ((i = ua.indexOf(s)) >= 0) {
    this.isNS = true;
    this.version = 6.1;
    return;
  }

  s = "MSIE";
  if ((i = ua.indexOf(s))) {
    this.isIE = true;
    this.version = parseFloat(ua.substr(i + s.length));
    return;
  }
}

var browser = new Browser();

//----------------------------------------------------------------------------
// Code for handling the menu bar and active button.
//----------------------------------------------------------------------------

var activeButton = null;

/* [MODIFIED] This code commented out, not needed for activate/deactivate
   on mouseover.

// Capture mouse clicks on the page so any active button can be
// deactivated.

if (browser.isIE)
  document.onmousedown = pageMousedown;
else
  document.addEventListener("mousedown", pageMousedown, true);

function pageMousedown(event) {

  var el;

  // If there is no active button, exit.

  if (activeButton == null)
    return;

  // Find the element that was clicked on.

  if (browser.isIE)
    el = window.event.srcElement;
  else
    el = (event.target.tagName ? event.target : event.target.parentNode);

  // If the active button was clicked on, exit.

  if (el == activeButton)
    return;

  // If the element is not part of a menu, reset and clear the active
  // button.

  if (getContainerWith(el, "DIV", "menu") == null) {
    resetButton(activeButton);
    activeButton = null;
  }
}

[END MODIFIED] */

function buttonClick(event, menuId) {

  var button;

  // Get the target button element.

  if (browser.isIE)
    button = window.event.srcElement;
  else
    button = event.currentTarget;

  // Blur focus from the link to remove that annoying outline.

  button.blur();

  // Associate the named menu to this button if not already done.
  // Additionally, initialize menu display.

  if (button.menu == null) {
    button.menu = document.getElementById(menuId);
    if (button.menu.isInitialized == null)
      menuInit(button.menu);
  }

  // [MODIFIED] Added for activate/deactivate on mouseover.

  // Set mouseout event handler for the button, if not already done.

  if (button.onmouseout == null)
    button.onmouseout = buttonOrMenuMouseout;

  // Exit if this button is the currently active one.

  if (button == activeButton)
    return false;

  // [END MODIFIED]

  // Reset the currently active button, if any.

  if (activeButton != null)
    resetButton(activeButton);

  // Activate this button, unless it was the currently active one.

  if (button != activeButton) {
    depressButton(button);
    activeButton = button;
  }
  else
    activeButton = null;

  return false;
}

function buttonMouseover(event, menuId) {

  var button;

  // [MODIFIED] Added for activate/deactivate on mouseover.

  // Activates this button's menu if no other is currently active.

  if (activeButton == null) {
    buttonClick(event, menuId);
    return;
  }

  // [END MODIFIED]

  // Find the target button element.

  if (browser.isIE)
    button = window.event.srcElement;
  else
    button = event.currentTarget;

  // If any other button menu is active, make this one active instead.

  if (activeButton != null && activeButton != button)
    buttonClick(event, menuId);
}

function depressButton(button) {

  var x, y;

  // Update the button's style class to make it look like it's
  // depressed.

  button.className += " menuButtonActive";

  // [MODIFIED] Added for activate/deactivate on mouseover.

  // Set mouseout event handler for the button, if not already done.

  if (button.onmouseout == null)
    button.onmouseout = buttonOrMenuMouseout;
  if (button.menu.onmouseout == null)
    button.menu.onmouseout = buttonOrMenuMouseout;

  // [END MODIFIED]

  // Position the associated drop down menu under the button and
  // show it.

  x = getPageOffsetLeft(button);
  y = getPageOffsetTop(button) + button.offsetHeight;

  // For IE, adjust position.

  if (browser.isIE) {
//    x += button.offsetParent.clientLeft;
//    y += button.offsetParent.clientTop;
x -= 25;
  }

  button.menu.style.left = x + "px";
  button.menu.style.top  = y + "px";
  button.menu.style.visibility = "visible";

  // For IE; size, position and show the menu's IFRAME as well.

  if (button.menu.iframeEl != null)
  {
    button.menu.iframeEl.style.left = button.menu.style.left;
    button.menu.iframeEl.style.top  = button.menu.style.top;
    button.menu.iframeEl.style.width  = button.menu.offsetWidth + "px";
    button.menu.iframeEl.style.height = button.menu.offsetHeight + "px";
    button.menu.iframeEl.style.display = "";
  }
}

function resetButton(button) {

  // Restore the button's style class.

  removeClassName(button, "menuButtonActive");

  // Hide the button's menu, first closing any sub menus.

  if (button.menu != null) {
    closeSubMenu(button.menu);
    button.menu.style.visibility = "hidden";

    // For IE, hide menu's IFRAME as well.

    if (button.menu.iframeEl != null)
      button.menu.iframeEl.style.display = "none";
  }
}

//----------------------------------------------------------------------------
// Code to handle the menus and sub menus.
//----------------------------------------------------------------------------

function menuMouseover(event) {

  var menu;

  // Find the target menu element.

  if (browser.isIE)
    menu = getContainerWith(window.event.srcElement, "DIV", "menu");
  else
    menu = event.currentTarget;

  // Close any active sub menu.

  if (menu.activeItem != null)
    closeSubMenu(menu);
}

function menuItemMouseover(event, menuId) {

  var item, menu, x, y;

  // Find the target item element and its parent menu element.

  if (browser.isIE)
    item = getContainerWith(window.event.srcElement, "A", "menuItem");
  else
    item = event.currentTarget;
  menu = getContainerWith(item, "DIV", "menu");

  // Close any active sub menu and mark this one as active.

  if (menu.activeItem != null)
    closeSubMenu(menu);
  menu.activeItem = item;

  // Highlight the item element.

  item.className += " menuItemHighlight";

  // Initialize the sub menu, if not already done.

  if (item.subMenu == null) {
    item.subMenu = document.getElementById(menuId);
    if (item.subMenu.isInitialized == null)
      menuInit(item.subMenu);
  }

  // [MODIFIED] Added for activate/deactivate on mouseover.

  // Set mouseout event handler for the sub menu, if not already done.

  if (item.subMenu.onmouseout == null)
    item.subMenu.onmouseout = buttonOrMenuMouseout;

  // [END MODIFIED]

  // Get position for submenu based on the menu item.

  x = getPageOffsetRight(item) + item.offsetWidth;
  y = getPageOffsetTop(item);

  // Adjust position to fit in view.

  var maxX, maxY;

  if (browser.isIE) {
    maxX = Math.max(document.documentElement.scrollLeft, document.body.scrollLeft) +
      (document.documentElement.clientWidth != 0 ? document.documentElement.clientWidth : document.body.clientWidth);
    maxY = Math.max(document.documentElement.scrollTop, document.body.scrollTop) +
      (document.documentElement.clientHeight != 0 ? document.documentElement.clientHeight : document.body.clientHeight);
  }
  if (browser.isOP) {
    maxX = document.documentElement.scrollLeft + window.innerWidth;
    maxY = document.documentElement.scrollTop  + window.innerHeight;
  }
  if (browser.isNS) {
    maxX = window.scrollX + window.innerWidth;
    maxY = window.scrollY + window.innerHeight;
  }
  maxX -= item.subMenu.offsetWidth;
  maxY -= item.subMenu.offsetHeight;

  if (x > maxX)
    x = Math.max(0, x - item.offsetWidth - item.subMenu.offsetWidth
      + (menu.offsetWidth - item.offsetWidth));
  y = Math.max(0, Math.min(y, maxY));

  // Position and show the sub menu.

  item.subMenu.style.left       = x + "px";
  item.subMenu.style.top        = y + "px";
  item.subMenu.style.visibility = "visible";

  // For IE; size, position and display the menu's IFRAME as well.

  if (item.subMenu.iframeEl != null)
  {
    item.subMenu.iframeEl.style.left    = item.subMenu.style.left;
    item.subMenu.iframeEl.style.top     = item.subMenu.style.top;
    item.subMenu.iframeEl.style.width   = item.subMenu.offsetWidth + "px";
    item.subMenu.iframeEl.style.height  = item.subMenu.offsetHeight + "px";
    item.subMenu.iframeEl.style.display = "";
  }

  // Stop the event from bubbling.

  if (browser.isIE)
    window.event.cancelBubble = true;
  else
    event.stopPropagation();
}

function closeSubMenu(menu) {

  if (menu == null || menu.activeItem == null)
    return;

  // Recursively close any sub menus.

  if (menu.activeItem.subMenu != null) {
    closeSubMenu(menu.activeItem.subMenu);
    menu.activeItem.subMenu.style.visibility = "hidden";

    // For IE, hide the sub menu's IFRAME as well.

    if (menu.activeItem.subMenu.iframeEl != null)
      menu.activeItem.subMenu.iframeEl.style.display = "none";

    menu.activeItem.subMenu = null;
  }

  // Deactivate the active menu item.

  removeClassName(menu.activeItem, "menuItemHighlight");
  menu.activeItem = null;
}

// [MODIFIED] Added for activate/deactivate on mouseover. Handler for mouseout
// event on buttons and menus.

function buttonOrMenuMouseout(event) {

  var el;

  // If there is no active button, exit.

  if (activeButton == null)
    return;

  // Find the element the mouse is moving to.

  if (browser.isIE)
    el = window.event.toElement;
  else if (event.relatedTarget != null)
      el = (event.relatedTarget.tagName ? event.relatedTarget : event.relatedTarget.parentNode);

  // If the element is not part of a menu, reset the active button.

  if (getContainerWith(el, "DIV", "menu") == null) {
    resetButton(activeButton);
    activeButton = null;
  }
}

// [END MODIFIED]

//----------------------------------------------------------------------------
// Code to initialize menus.
//----------------------------------------------------------------------------

function menuInit(menu) {

  var itemList, spanList;
  var textEl, arrowEl;
  var itemWidth;
  var w, dw;
  var i, j;

  // For IE, replace arrow characters.

  if (browser.isIE) {
    menu.style.lineHeight = "2.5ex";
    spanList = menu.getElementsByTagName("SPAN");
    for (i = 0; i < spanList.length; i++)
      if (hasClassName(spanList[i], "menuItemArrow")) {
        spanList[i].style.fontFamily = "Webdings";
        spanList[i].firstChild.nodeValue = "4";
      }
  }

  // Find the width of a menu item.

  itemList = menu.getElementsByTagName("A");
  if (itemList.length > 0)
    itemWidth = itemList[0].offsetWidth;
  else
    return;

  // For items with arrows, add padding to item text to make the
  // arrows flush right.
/*
  for (i = 0; i < itemList.length; i++) {
    spanList = itemList[i].getElementsByTagName("SPAN");
    textEl  = null;
    arrowEl = null;
    for (j = 0; j < spanList.length; j++) {
      if (hasClassName(spanList[j], "menuItemText"))
        textEl = spanList[j];
      if (hasClassName(spanList[j], "menuItemArrow"))
        arrowEl = spanList[j];
    }
    if (textEl != null && arrowEl != null) {
      textEl.style.paddingRight = (itemWidth 
        - (textEl.offsetWidth + arrowEl.offsetWidth)) + "px";
      // For Opera, remove the negative right margin to fix a display bug.
      if (browser.isOP)
        arrowEl.style.marginRight = "0px";
    }
  }
*/
  // Fix IE hover problem by setting an explicit width on first item of
  // the menu.

  if (browser.isIE) {
    w = itemList[0].offsetWidth;
    itemList[0].style.width = w + "px";
    dw = itemList[0].offsetWidth - w;
    w -= dw;
    itemList[0].style.width = w + "px";
  }

  // Fix the IE display problem (SELECT elements and other windowed controls
  // overlaying the menu) by adding an IFRAME under the menu.

  if (browser.isIE) {
    var iframeEl = document.createElement("IFRAME");
    iframeEl.frameBorder = 0;
    iframeEl.src = "javascript:;";
    iframeEl.style.display = "none";
    iframeEl.style.position = "absolute";
    iframeEl.style.filter = "progid:DXImageTransform.Microsoft.Alpha(style=0,opacity=0)";
    menu.iframeEl = menu.parentNode.insertBefore(iframeEl, menu);
  }

  // Mark menu as initialized.

  menu.isInitialized = true;
}

//----------------------------------------------------------------------------
// General utility functions.
//----------------------------------------------------------------------------

function getContainerWith(node, tagName, className) {

  // Starting with the given node, find the nearest containing element
  // with the specified tag name and style class.

  while (node != null) {
    if (node.tagName != null && node.tagName == tagName &&
        hasClassName(node, className))
      return node;
    node = node.parentNode;
  }

  return node;
}

function hasClassName(el, name) {

  var i, list;

  // Return true if the given element currently has the given class
  // name.

  list = el.className.split(" ");
  for (i = 0; i < list.length; i++)
    if (list[i] == name)
      return true;

  return false;
}

function removeClassName(el, name) {

  var i, curList, newList;

  if (el.className == null)
    return;

  // Remove the given class name from the element's className property.

  newList = new Array();
  curList = el.className.split(" ");
  for (i = 0; i < curList.length; i++)
    if (curList[i] != name)
      newList.push(curList[i]);
  el.className = newList.join(" ");
}

function getPageOffsetLeft(el) {

  var x;

  // Return the x coordinate of an element relative to the page.

  x = el.offsetLeft;
  if (el.offsetParent != null)
    x += getPageOffsetLeft(el.offsetParent);

  return x;
}

function getPageOffsetRight(el) {

  var x;

  // Return the x coordinate of an element relative to the page.

  x = el.offsetLeft;
  if (el.offsetParent != null)
    x += getPageOffsetRight(el.offsetParent);
  else
    x += + el.offsetWidth;

  return x;
}

function getPageOffsetTop(el) {

  var y;

  // Return the x coordinate of an element relative to the page.

  y = el.offsetTop;
  if (el.offsetParent != null)
    y += getPageOffsetTop(el.offsetParent);

  return y;
}