title: How to select an item in SmartGWT SelectItem?
body: <p>I have a SelectItem object which has a few items. I set a value MAP with:</p>
  
  <pre><code>organizations[0] = "A";
  organizations[0] = "B";
  selectItem.setValueMap(organizations);
  </code></pre>
  
  <p>When displayed, the combo box is showing "A" as selected item. Then, I need to programatically select value "B" and select this on the current SelectItem object. I've been looking all over the place with no avail.</p>
  
  <p>Anyone?</p>