Könn ihr mir den Code verbessern?

<script language="JavaScript" type="text/javascript"><!--
var xmlHttp = null;
function glossar(wert) {
if (window.ActivXObject("Msxml2.XMLHTTP");
} catch (e) {
}
}
} else if (window.XMLHttpRequest) {
try {
xmlHttp= new XMLHttpRequest();
if (xmlHttp) {
xmlHttp.open('GET', 'http://prisma-habbo.de.tl/Test.htm'
escape(wert), true);
xmlHttp.onreadystatechange = daten;
xmlHttp.send(null);
}
}
var text = '';
function daten() {
if (xmlHttp.readyState = 4) {
text = 'Möbel: <br \/>' + xmlHttp.responseText;
document.getElementById('output').innerHTML = text;
}
}
//--></script>
<form>
    <input id="&quot;suchfeld&quot;" onkeyup="&quot;glossar(this.value)&quot;" form="" type="text" />
</form>