//ő
function codeSimple (txtId, code, defText){
  codeInsert (txtId, "[" + code + "]", "[/" + code + "]", defText);
}

function codeParam (txtId, code, param, defText){
  codeInsert (txtId, "[" + code + ":" + param + "]", "[/" + code + "]", defText);
}

function codeGetURL (txtId, code, msg){
  var url = prompt (msg, "http://");
  if (!url)
  {
    document.getElementById(txtId).focus();
    return;
  }
  codeParam (txtId, code, url, (code == 'L' ? '[link]' : null));
}

function codeSmiley (txtId, code){
  codeInsert (txtId, " " + code + " ", null, null);
}

function codeInsert (txtId, oTag, cTag, defText){
  var txt = document.getElementById(txtId);
  txt.focus();

  if (txt.selectionStart != undefined)
  {
    // -- Firefox, Opera, Safari
    var sel_start = txt.selectionStart;
    var sel_end   = txt.selectionEnd;

    if (!cTag)
    {
      txt.value = txt.value.substr(0, sel_start) + oTag + txt.value.substr(sel_end);
      txt.selectionStart = sel_start + oTag.length;
      txt.selectionEnd   = sel_start + oTag.length;
    }
    else
    {
      var selText = txt.value.substr(sel_start, sel_end - sel_start);
      if (!selText && defText) selText = defText;

      txt.value = txt.value.substr(0, sel_start) + oTag + selText + cTag + txt.value.substr(sel_end);
      txt.selectionStart = sel_start + oTag.length;
      txt.selectionEnd   = sel_start + oTag.length + selText.length;
    }
  }
  else if (document.selection)
  {
    // -- IE
    var sel = document.selection.createRange();

    if (sel) {
      if (!cTag) sel.text = oTag;
      else
      {
        var selText = sel.text;
        if (!selText && defText) selText = defText;
        var selLength = selText.replace(/\r\n/g, "\n").length;

        sel.text = oTag + selText + cTag;
        sel.moveStart ("character", -cTag.length - selLength);
        sel.moveEnd   ("character", -cTag.length);
      }
      sel.select();
    }
  }
}