<html>
<head>
<script>
function boom()
{
  var het = document.createTextNode(String.fromCharCode(0x05D7)); // hebrew letter het
  document.getElementById("s").appendChild(het);
}
</script>
</head>

<body onload="boom();" dir="rtl">

<div><span id="s">A</span><span>&nbsp;</span>B</div>

</body>

</html>