The combobox is not working in IE8 when the value is different with the name displayed in dropdown.

For example, the dropdown below:
<select id="user">
   <option value="">--</option>
   <option value="1">Eric</option>
   <option value="7">Tom</option>
 </select>

Author: guoicq

demos/autocomplete/combobox.html

@@ -58,7 +58,7 @@
 								var matcher = new RegExp( "^" + $.ui.autocomplete.escapeRegex( $(this).val() ) + "$", "i" ),
 									valid = false;
 								select.children( "option" ).each(function() {
-									if ( this.value.match( matcher ) ) {
+									if ( this.innerHTML.match( matcher ) ) {
 										this.selected = valid = true;
 										return false;
 									}