function doInsert(ibTag, ibClsTag, isSingle)
{
var isClose = false;
var obj_ta = document.REPLIER.Post;

if ( (myVersion >= 4) && is_ie && is_win) // Ensure it works for IE4up / Win only
{
 if(obj_ta.isTextEdit){ // this doesn't work for NS, but it works for IE 4+ and compatible browsers
  obj_ta.focus();
  var sel = document.selection;
  var rng = sel.createRange();
  rng.colapse;
  if((sel.type == "Text" || sel.type == "None") && rng != null){
   if(ibClsTag != "" && rng.text.length > 0)
    ibTag += rng.text + ibClsTag;
   else if(isSingle)
    isClose = true;

   rng.text = ibTag;
  }
 }
 else{
  if(isSingle)
   isClose = true;

  obj_ta.value += ibTag;
 }
}
else if ( obj_ta.selectionEnd )
{
 var ss = obj_ta.selectionStart;
 
 var es = obj_ta.selectionEnd;
 
 if (es <= 2)
 {
  es = obj_ta.textLength;
 }
 
 var start  = (obj_ta.value).substring(0, ss);
 var middle = (obj_ta.value).substring(ss, es);
 var end    = (obj_ta.value).substring(es, obj_ta.textLength);
 
 //-----------------------------------
 // text range?
 //-----------------------------------
 
 if (obj_ta.selectionEnd - obj_ta.selectionStart > 0)
 {
  middle = ibTag + middle + ibClsTag;
 }
 else
 {
  middle = ibTag + middle;
 
  if (isSingle)
  {
   isClose = true;
  }
 }
 
 obj_ta.value = start + middle + end;
}
else
{
 if(isSingle)
  isClose = true;

 obj_ta.value += ibTag;
}

obj_ta.focus();


return isClose;
}