title: SharePoint 2010 Client Object Model + set the value of a multiple lookup field with Javascript
body: <p>I'm trying to update a list item with the SharePoint 2010 Client Object Model and Javascript.  The item I am trying to update has a Multiple Value Lookup field.  I can successfully set this field, but only with one value.  Does anyone know how to set it with multiple values?</p>
  
  <pre><code>var _newLookupField = new SP.FieldLookupValue();
      _newLookupField.set_lookupId(itemArray.toString()); //this works if array is only 1 item        
  
      currentItem.set_item('Lookup_x0020_Field', _newLookupField);
  </code></pre>