[RESOLVED] Get the position of the cursor in a textarea

[PBertie]

Hi,
I've done the following code to place formatting tags around code in a textarea. It works perfect in Firefox but in IE it only works if some text is selected.

How do I get the positon of the cursor if no text is selected?

<script type="text/javascript">
//<![CDATA[
  
  function ApplySimpleTag(tagCode) {
    var selText = "";
    var beforeText = "";
    var afterText = "";
    var newSelStart = 0;
    var commentBox = objById('pbertie_CommentBox');
    var StartTag = '[' + tagCode + ']';
    var EndTag = '[/' + tagCode + ']';
    
    if (commentBox.selectionStart) {
      // check whether some text is selected in the textarea
      
      beforeText = commentBox.value.substring(0, commentBox.selectionStart);
      afterText = commentBox.value.substring(commentBox.selectionEnd);
      newSelStart = commentBox.selectionStart + StartTag.length;
      if (commentBox.selectionStart != commentBox.selectionEnd) {
        selText = commentBox.value.substring(commentBox.selectionStart, commentBox.selectionEnd);
      }
      commentBox.value = beforeText + StartTag + selText + EndTag + afterText;
      
      if(commentBox.setSelectionRange) {
          commentBox.setSelectionRange(newSelStart, newSelStart + selText.length);
      }
      else if (commentBox.createTextRange) {
        var selRange = commentBox.createTextRange();
        selRange.collapse(true);
        selRange.moveStart("character", newSelStart);
        selRange.moveEnd("character", selText.length);
        selRange.select();
      }
      
    }
    else {
      var textRange = document.selection.createRange();
      
      if (textRange.parentElement() === commentBox) { // Fails this check is the selected length is zero.
        textRange.text = StartTag + textRange.text + EndTag;
      }
    }
    
    commentBox.focus();
  }
// ]]>
</script>
<textarea class="pbertie_EditorTextarea" id="pbertie_CommentBox"></textarea>