<!--
function ubbc(open, end){
    var tArea = document.myform.tekst;
    var isIE = (document.all)? true : false;
    var open = (open)? open : "";
    var end = (end)? end : "";
    if(isIE){
        tArea.focus();
        var curSelect = document.selection.createRange();
        if(arguments[2]){
              curSelect.text = open + arguments[2] + "]" + curSelect.text + end;
        } else {
              curSelect.text = open + curSelect.text + end;
        }
   } 
   else if(!isIE && typeof tArea.selectionStart != "undefined"){
        var selStart = tArea.value.substr(0, tArea.selectionStart);
        var selEnd = tArea.value.substr(tArea.selectionEnd, tArea.value.length);
        var curSelection = tArea.value.replace(selStart, '').replace(selEnd, '');
        if(arguments[2]){
              tArea.value = selStart + open + arguments[2] + "]" + curSelection + end + selEnd;
        } else {
              tArea.value = selStart + open + curSelection + end + selEnd;
        }
   } else {
        tArea.value += (arguments[2])? open + arguments[2] + "]" + end : open + end;
   }
}
//-->