Test Case Boilerplate
Fork this way...
HTML
<input name="testblink" type="text" value="Harald" />
<input name="testaccount_name" type="text" value="Harald" />
<script language="javascript" type="text/javascript">
jQuery(document).mousemove(function(e){
jQuery('input[name="testaccount_name"]').val(jQuery('input[name="testaccount_name"]').val()+'test');
});
</script>