Witam mam taki kod do wstawiania znacznikow do textarea:

[HTML] pobierz, plaintext 
<script type="text/javascript">
<!--
 
  /**************************************************************************/
 
  function closeTags(str, tagsToClose) {
    var tags = {}, ret = '', sT = tagsToClose;
    str.replace(/<(\/)?([\w]+)([\s=][^<>]*)?>/g, function(a, b, c) {
      if (isNaN(tags[c = c.toLowerCase()])) tags[c] = 0;
      for (var i = 0; i < sT.length;) if (c == sT[i++]) {
        b != '/' ? tags[c]++ : tags[c] > 0 ? tags[c]-- : 0; break;
      }
    } );
    for (var v in tags) while (tags[v]--) ret += '[/' + v + ']';
    return ret;
  }
 
  function selExist(elm) {
    if (elm.setSelectionRange) {
      return elm.selectionStart != elm.selectionEnd;
    }
    else if (document.selection) {
      elm.focus();
      var range = document.selection.createRange();
      return range.text != '';
    }
    return false;
  }
 
  function addToEnd(elm, text) {
    elm.focus();
    elm.value += text;
    if (elm.setSelectionRange) {
      var len = elm.value.length;
      elm.setSelectionRange(len, len);
    }
    elm.scrollTop = elm.scrollHeight;
  }
 
  function selReplace(elm, text1, text2) {
    elm.focus();
    if (elm.setSelectionRange) {
      if (typeof text2 != 'undefined') {
        text1 += elm.value.substring(elm.selectionStart, elm.selectionEnd) + text2;
      }
      var scrollPos = [elm.scrollLeft, elm.scrollTop];
      var begin = elm.value.substr(0, elm.selectionStart);
      var end = elm.value.substr(elm.selectionEnd);
      var curPos = elm.selectionStart + text1.length;
      elm.value = begin + text1 + end;
      elm.setSelectionRange(curPos, curPos);
      elm.scrollLeft = scrollPos[0];
      elm.scrollTop = scrollPos[1];
    }
    else if (document.selection) {
      var range = document.selection.createRange();
      if (typeof text2 != 'undefined') {
        text1 += range.text + text2;
      }
      range.text = text1;
      range.select();
    }
    else {
      if (typeof text2 != 'undefined') text1 += text2;
      addToEnd(elm, text1);
    }
  }
 
  /**************************************************************************/
 
  var tagList = ['b', 'i', 'u', 'code', 'img'];
 
  var tagOpened = [];
 
  function insertText(text) {
    var elm = document.forms.my_form.my_textarea;
    selReplace(elm, ' ' + text + ' ');
  }
 
  function pasteTag(nmbr, btn) {
    var elm = document.forms.my_form.my_textarea;
    if (selExist(elm)) {
      selReplace(elm, '[' + tagList[nmbr] + ']', '[/' + tagList[nmbr] + ']');
    } 
    else {
      if (tagOpened[nmbr]) {
        selReplace(elm, '[/' + tagList[nmbr] + ']');
        btn.value = btn.value.substr(0, btn.value.length - 1);
        tagOpened[nmbr] = false;
      }
      else {
        selReplace(elm, '[' + tagList[nmbr] + ']');
        btn.value += '*';
        tagOpened[nmbr] = true;
      }
    }
  }
 
  function closeAllTags() {
    var elm = document.forms.my_form.my_textarea;
    var inpts = document.forms.my_form.elements;
    var tmpStr = closeTags(elm.value, tagList);
    if (tmpStr != '') {
      addToEnd(elm, tmpStr);
      tagOpened = [];
      for (var i = 0; i < inpts.length; i++) {
        if (inpts[i].type.toLowerCase() == 'button') {
          with (inpts[i].value) if (charAt(length - 1) == '*') {
            inpts[i].value = inpts[i].value.substr(0, inpts[i].value.length - 1);
          }
        }
      }
    }
    elm.focus();
  }
 
//-->
</script>
[HTML] pobierz, plaintext 

i takimi buttonami je wstawiam:

[HTML] pobierz, plaintext 
<input class="btn1" type='button' value='B' accesskey="b" onclick="pasteTag(0, this)" onmouseover="overlib('<div align=center>pogrubienie</div>')" onmouseout="nd();"/>
<input class="btn1" type='button' value='I' accesskey="i" onclick="pasteTag(1, this)" onmouseover="overlib('<div align=center>kursywa</div>')" onmouseout="nd();"/>
<input class="btn1" type='button' value='U' accesskey="u" onclick="pasteTag(2, this)" onmouseover="overlib('<div align=center>podkreślenie</div>')" onmouseout="nd();"/>
<input class="btn1" type='button' value='CODE' accesskey="c" onclick="pasteTag(3, this)" onmouseover="overlib('<div align=center>kod źródłowy</div>')" onmouseout="nd();"/>
<input class="btn1" type='button' value='IMG' accesskey="m" onclick="pasteTag(4, this)" onmouseover="overlib('<div align=center>wstaw obrazek (wpisz nazwe z rozszerzeniem)</div>')" onmouseout="nd();"/>
<input class="btn1" type="button" onclick="closeAllTags()" value="Zamknij" onmouseover="overlib('<div align=center>Zamknij znaczniki</div>')" onmouseout="nd();">
<TEXTAREA NAME="my_textarea" COLS="60" ROWS="15"></TEXTAREA>
[HTML] pobierz, plaintext 

I tu pojawia sie problem ponieważ button zamknij znaczniki wogule ich nie zamyka. Prosze o pomoc

Przenoszę na JavaScript