/**

 * Images used for form field validation

 * @var string img_bad: Shown on field validation failure

 * @var string img_good: Shown on field validation success

 * @var string img_neu: Shown when a field's value matches known good regexp but still needs testing (e.g. DB info)

 */

var img_bad = '../images/bad.gif';

var img_good = '../images/good.gif';

var img_neu = '../images/unknown.gif';

/**

 * Highlights the background of the next-up <tr> tag.

 * @param object Form field

 */

function set_focus(item)

{

  var hint_id = ( item.type == 'radio' ) ? 'hint_' + item.name + '_' + item.value : 'hint_' + item.name;

  if ( document.getElementById(hint_id) )

  {

    var el = document.getElementById(hint_id);

    el.style.zIndex = String(getHighestZ() + 2);

    domObjChangeOpac(0, el);

    el.style.display = 'block';

    domOpacity(el, 0, 100, 400);

  }

  item = getParentTR(item);

  if ( item.tagName == 'TR' )

  {

    item.style.backgroundColor = '#FFFFE0';

  }

}

/**

 * Clears the background of the next-up <tr> tag.

 * @param object Form field

 */

function clear_focus(item)

{

  var hint_id = ( item.type == 'radio' ) ? 'hint_' + item.name + '_' + item.value : 'hint_' + item.name;

  if ( document.getElementById(hint_id) )

  {

    var el = document.getElementById(hint_id);

    // el.style.display = 'none';

    domOpacity(el, 100, 0, 200);

    setTimeout(function()

      {

        el.style.display = 'none';

      }, 250);

  }

  item = getParentTR(item);

  if ( item.tagName == 'TR' )

  {

    if ( IE )

    {

      item.style.backgroundColor = 'transparent';

    }

    else

    {

      item.style.backgroundColor = null;

    }

  }

}

function getParentTR(item)

{

  var tagName = item.tagName;

  while ( tagName != 'TR' && tagName != null )

  {

    item = item.parentNode;

    tagName = item.tagName;

  }

  if ( tagName == 'TR' && item.className != 'nohighlight' )

  {

    return item;

  }

  return null;

}

function init_hint(input, hint)

{

  hint.className = 'fieldtip_js';

  setTimeout(function()

    {

      if ( input.type == 'radio' )

      {

        var tr = getParentTR(input).parentNode.parentNode.parentNode;

        var span_width = $(tr).Width() - 24;

      }

      else

      {

        var span_width = $(input).Width() - 24;

      }

      var span_top = $(input).Top() + $(input).Height();

      var span_left = $(input).Left();

      hint.style.top = span_top + 'px';

      hint.style.left = span_left + 'px';

      hint.style.width = span_width + 'px';

      hint.style.display = 'none';

    }, 100);

}

var set_inputs_to_highlight = function()

{

  var inputs = document.getElementsByTagName('input');

  for ( var i = 0; i < inputs.length; i++ )

  {

    // Highlighting

    var tr = getParentTR(inputs[i]);

    if ( tr )

    {

      inputs[i].onfocus = function()

      {

        set_focus(this);

      }

      inputs[i].onblur = function()

      {

        clear_focus(this);

      }

    }

    // Hints

    var hint_id = ( inputs[i].type == 'radio' ) ? 'hint_' + inputs[i].name + '_' + inputs[i].value : 'hint_' + inputs[i].name;

    if ( document.getElementById(hint_id) )

    {

      var el = document.getElementById(hint_id);

      if ( el.tagName == 'SPAN' )

      {

        init_hint(inputs[i], el);

      }

    }

  }

}

addOnloadHook(set_inputs_to_highlight);

function install_set_ajax_loading()

{

  var base = document.getElementById('enano-body');

  var hider = document.createElement('div');

  hider.style.position = 'absolute';

  hider.style.backgroundColor = '#FFFFFF';

  hider.style.top = $(base).Top() + 'px';

  hider.style.left = $(base).Left() + 'px';

  hider.style.width = $(base).Width() + 'px';

  hider.style.height = $(base).Height() + 'px';

  hider.style.backgroundPosition = 'center center';

  hider.style.backgroundImage = 'url(../images/loading-big.gif)';

  hider.style.backgroundRepeat = 'no-repeat';

  hider.id = 'ajax_loader';

  domObjChangeOpac(0, hider);

  var body = document.getElementsByTagName('body')[0];

  body.appendChild(hider);

  opacity('ajax_loader', 0, 70, 750);

}

function install_unset_ajax_loading()

{

  if ( document.getElementById('ajax_loader') )

  {

    opacity('ajax_loader', 70, 0, 750);

    setTimeout(function()

      {

        var body = document.getElementsByTagName('body')[0];

        body.removeChild(document.getElementById('ajax_loader'));

      }, 1000);

  }

}