var isMozilla = (navigator.userAgent.toLowerCase().indexOf('gecko')!=-1) ? true : false;
var regexp = new RegExp("[\r]","gi");

function goldorak(selec)
{
  if (isMozilla) 
  {
  // Si on est sur Mozilla

    oField = document.forms['rapporter'].elements['txt'];

    objectValue = oField.value;

    deb = oField.selectionStart;
    fin = oField.selectionEnd;

    objectValueDeb = objectValue.substring( 0 , oField.selectionStart );
    objectValueFin = objectValue.substring( oField.selectionEnd , oField.textLength );
    objectSelected = objectValue.substring( oField.selectionStart ,oField.selectionEnd );

  //  alert("Debut:'"+objectValueDeb+"' ("+deb+")\nFin:'"+objectValueFin+"' ("+fin+")\n\nSelectionné:'"+objectSelected+"'("+(fin-deb)+")");
      
    oField.value = objectValueDeb + "[" + selec + "]" + objectSelected + "[/color]" + objectValueFin;
    oField.selectionStart = strlen(objectValueDeb);
    oField.selectionEnd = strlen(objectValueDeb + "[" + selec + "]" + objectSelected + "[/color]");
    oField.focus();
    oField.setSelectionRange(
      objectValueDeb.length + selec.length + 2,
      objectValueDeb.length + selec.length + 2);
  }
  else
  {
  // Si on est sur IE
    
    oField = document.forms['rapporter'].elements['txt'];
    var str = document.selection.createRange().text;

    if (str.length>0)
    {
    // Si on a selectionné du texte
      var sel = document.selection.createRange();
      sel.text = "[" + selec + "]" + str + "[/color]";
      sel.collapse();
      sel.select();
    }
    else
    {
      oField.focus(oField.caretPos);
    //  alert(oField.caretPos+"\n"+oField.value.length+"\n")
      oField.focus(oField.value.length);
      oField.caretPos = document.selection.createRange().duplicate();
      
      var bidon = "%~%";
      var orig = oField.value;
      oField.caretPos.text = bidon;
      var i = oField.value.search(bidon);
      oField.value = orig.substr(0,i) + "[" + selec + "][/color]" + orig.substr(i, oField.value.length);
      var r = 0;
      for(n = 0; n < i; n++)
      {if(regexp.test(oField.value.substr(n,2)) == true){r++;}};
      pos = i + 2 + selec.length - r;
      //placer(document.forms['rapporter'].elements['txt'], pos);
      var r = oField.createTextRange();
      r.moveStart('character', pos);
      r.collapse();
      r.select();

    }
  }
}