avioing

pickerBuilder.addView(new google.picker.DocsView().setParent('root').setIncludeFolders(true)).enableFeature(google.picker.Feature.MULTISELECT_ENABLED);

avioing

// add this inside your loop - looping over your marker locations 

    var coordinates_hash = new Array();
    var coordinates_str, actual_lat, actual_lon, adjusted_lat, adjusted_lon;

         actual_lat = adjusted_lat = this.locations[i].latitude;
         actual_lon = adjusted_lon = this.locations[i].longitude;
         coordinates_str = actual_lat + actual_lon;
         while (coordinates_hash[coordinates_str] != null) {
          // adjust coord by 50m or so

avioing

/*!
 * jQuery JavaScript Library v1.4.4pre
 * http://jquery.com/
 *
 * Copyright 2010, John Resig
 * Dual licensed under the MIT or GPL Version 2 licenses.
 * http://jquery.org/license
 *
 * Includes Sizzle.js
 * http://sizzlejs.com/