In the field to type the search characters it would be nice to add the type-ahead functionality. This code in the onKeyUp event can do this and you can navigate in the view with the up and down keys:
var PressedKey = event.keyCode ? event.keyCode : event.which ? event.which : event.charCode;
switch (PressedKey) {
case 40:
//show next entry<br/>
<br/>
break; <br/>
case 38:
// goto previous entry<br/>
<br/>
break;<br/>
default:
if (this.value.length > 1) {
//show entry which starts with the letters typed in<br/>
<br/>
}