var thispc = navigator.useragent.tolowercase() ;
var browserver = parseint(navigator.appversion) ;
var ieopera = ((thispc.indexof("msie") != -1) && (thispc.indexof("opera") == -1)) ;
var windows = ((thispc.indexof("win")!=-1) || (thispc.indexof("16bit") != -1)) ;
function inserttags(tagtype)
         {
         if ((browserver>=4) && ieopera && windows)
              selectedtext = document.selection.createrange().text ;
         var tags,selectedtext ;
         if (tagtype=="b")
             {
             opentag = "[b]" ;
             closetag = "[/b]" ;
             }
         if (tagtype=="i")
             {
             opentag = "[i]" ;
             closetag = "[/i]" ;
             }
         if (tagtype=="a")
             {
             opentag = "[url=http://]" ;
             closetag = "[/url]" ;
             }
         if (tagtype=="img")
             {
             opentag = "[img=http://]" ;
             closetag = "" ;
             }
         tagtypepart = tagtype.substr(0,4) ;
         if (tagtypepart=="emot")
             {
             opentag = "["+tagtype+"]" ;
             closetag = "" ;
             }
         if (opentag)
             {
             if (!selectedtext)
                  document.postform.replytext.value += opentag + closetag ;
             else
                  {
                  if ((browserver>=4) && ieopera && windows)
                       document.selection.createrange().text = opentag + selectedtext + closetag ;
                  else
                      document.postform.replytext.value += opentag + closetag ;
                  }
             document.postform.replytext.focus() ;
             }
         }