function bbfontstyle(bbopen, bbclose) {
var txtarea = document.post.message;

if ((clientVer >= 4) && is_ie && is_win) {
theSelection = document.selection.createRange().text;
if (!theSelection) {
txtarea.value += bbopen + bbclose;
txtarea.focus();
return;
}
document.selection.createRange().text = bbopen + theSelection + bbclose;
txtarea.focus();
return;
}
else if (txtarea.selectionEnd && (txtarea.selectionEnd - txtarea.selectionStart > 0))
{
mozWrap(txtarea, bbopen, bbclose);
return;
}
else
{
txtarea.value += bbopen + bbclose;
txtarea.focus();
}
storeCaret(txtarea);
}