var $ = function(id)

{

  return new DNobj(id);

}

var $dynano = $;

function DNobj(id)

{

  if ( id == undefined )

  {

    return {};

  }

  this.object = ( typeof(id) == 'object' ) ? id : document.getElementById(id);

  if ( !this.object )

  {

    console.warn('Dynano: requested object is bad. id parameter follows.');

    console.debug(id);

    this.object = false;

    return this;

  }

  this.height = __DNObjGetHeight(this.object);

  this.width = __DNObjGetWidth(this.object);

  if ( this.object.tagName == 'TEXTAREA' && ( typeof(tinyMCE) == 'object' || typeof(tinyMCE_GZ) == 'object' ) )

  {

    this.object.dnIsMCE = 'no';

    this.switchToMCE = DN_switchToMCE;

    this.destroyMCE = DN_destroyMCE;

    this.getContent = DN_mceFetchContent;

    this.setContent = DN_mceSetContent;

  }

}

function __DNObjGetHeight(o) {

  return o.offsetHeight;

}

function __DNObjGetWidth(o) {

  return o.offsetWidth;

}

function addClass(obj, clsname)

{

  var cnt = obj.className;

  var space = ( (cnt + '').length > 0 ) ? ' ' : '';

  var cls = cnt + space + clsname;

  obj.className = cls;

}

function rmClass(obj, clsname)

{

  var cnt = obj.className;

  if ( cnt == clsname )

  {

    obj.className = '';

  }

  else

  {

    cnt = cnt.replace(clsname, '');

    cnt = trim(cnt);

    obj.className = cnt;

  }

}

function hasClass(obj, clsname)

{

  var cnt = obj.className;

  if ( !cnt )

    return false;

  if ( cnt == clsname )

    return true;

  cnt = cnt.split(' ');

  for ( var i in cnt )

    if ( cnt[i] == clsname )

      return true;

  return false;

}

function __DNObjGetLeft(obj) {

  var left_offset = obj.offsetLeft;

  while ((obj = obj.offsetParent) != null) {

    left_offset += obj.offsetLeft;

  }

  return left_offset;

}

function __DNObjGetTop(obj) {

  var left_offset = obj.offsetTop;

  while ((obj = obj.offsetParent) != null) {

    left_offset += obj.offsetTop;

  }

  return left_offset;

}

function DN_switchToMCE(performWikiTransform)

{

  if ( !this.object.id )

    this.object.id = 'textarea_' + Math.floor(Math.random() * 1000000);

  if ( !this.object.name )

    this.object.name = 'textarea_' + Math.floor(Math.random() * 1000000);

  // Updated for TinyMCE 3.x

  if ( performWikiTransform )

  {

    this.object.value = DN_WikitextToXHTML(this.object.value);

  }

  // If tinyMCE init hasn't been called yet, do it now.

  if ( !tinymce_initted )

  {

    console.info('$dynano().switchToMCE(): doing "exact"-type MCE init');

    enano_tinymce_options.mode = 'exact';

    enano_tinymce_options.elements = this.object.id;

    initTinyMCE();

    this.object.dnIsMCE = 'yes';

    return true;

  }

  else

  {

    console.info('$dynano().switchToMCE(): tinyMCE already loaded, calling mceAddControl');

    tinymce.EditorManager.execCommand("mceAddControl", true, this.object.id);

    this.object.dnIsMCE = 'yes';

  }

  return this;

}

function DN_destroyMCE(performWikiTransform)

{

  //if ( !this.object.dn_is_mce )

  //  return this;

  if ( this.object.id )

  {

    // TinyMCE 2.x

    // tinymce.EditorManager.removeMCEControl(this.object.name);

    // TinyMCE 3.x

    var ed = tinymce.EditorManager.getInstanceById(this.object.id);

    if ( ed )

    {

      if ( !tinymce.EditorManager.execCommand("mceRemoveEditor", false, this.object.id) )

        alert('could not destroy editor');

      if ( performWikiTransform )

      {

        this.object.value = DN_XHTMLToWikitext(this.object.value);

      }

    }

  }

  this.object.dnIsMCE = 'no';

  return this;

}

function DN_mceFetchContent()

{

  if ( this.object.name )

  {

    var text = this.object.value;

    if ( tinymce.EditorManager.get(this.object.id) )

    {

      var editor = tinymce.EditorManager.get(this.object.id);

      text = editor.getContent();

    }

    return text;

  }

  else

  {

    return this.object.value;

  }

}

function DN_mceSetContent(text)

{

  if ( this.object.name )

  {

    this.object.value = text;

    if ( tinymce.EditorManager.get(this.object.id) )

    {

      var editor = tinymce.EditorManager.get(this.object.id);

      editor.setContent(text);

    }

  }

  else

  {

    this.object.value = text;

  }

}

// A basic Wikitext to XHTML converter

function DN_WikitextToXHTML(text)

{

  text = text.replace(/^===[\s]*(.+?)[\s]*===$/g, '<h3>$1</h3>');

  text = text.replace(/'''(.+?)'''/g, '<b>$1</b>');

  text = text.replace(/''(.+?)''/g, '<i>$1</i>');

  text = text.replace(/\[(http|ftp|irc|mailto):([^ \]])+ ([^\]]+?)\]/g, '<a href="$1:$2">$4</a>');

  return text;

}

// Inverse of the previous function

function DN_XHTMLToWikitext(text)

{

  text = text.replace(/<h3>(.+?)<\/h3>/g, '=== $1 ===');

  text = text.replace(/<(b|strong)>(.+?)<\/(b|strong)>/g, "'''$2'''");

  text = text.replace(/<(i|em)>(.+?)<\/(i|em)>/g, "''$2''");

  text = text.replace(/<a href="([^" ]+)">(.+?)<\/a>/g, '[$1 $2]');

  text = text.replace(/<\/?p>/g, '');

  return text;

}

DNobj.prototype.addClass = function(clsname) { addClass(this.object, clsname); return this; };

DNobj.prototype.rmClass  = function(clsname) { rmClass( this.object, clsname); return this; };

DNobj.prototype.hasClass = function(clsname) { return hasClass(this.object, clsname); };

DNobj.prototype.Height   = function()        { return __DNObjGetHeight(this.object); }

DNobj.prototype.Width    = function()        { return __DNObjGetWidth( this.object); }

DNobj.prototype.Left     = function()        { /* return this.object.offsetLeft; */ return __DNObjGetLeft(this.object); }

DNobj.prototype.Top      = function()        { /* return this.object.offsetTop;  */ return __DNObjGetTop( this.object); }