I figured out how to get it work. The problem was, that fields in the infowindow doesn't exit, when the script is called first. These objects are created when the infowindow is build, when one clicks on the marker.
I added the eventhandler onChange = 'getautosuggest()' to the fruit select into the infowindow and wrapped the creation of the autosuggest into the function getautosuggest(). Now everything works fine. Here the parts I've changed: //Autosuggest field using FCBKcomplete function getautosuggest(){ $(document).ready(function(){ $("#sort").fcbkcomplete({ json_url: "get_sort_json.php? &fruit="+document.getElementById('fruit').value+"", addontab: false, maxitems: 20, input_min_size: 1, height: 10, cache: false, newel: false, select_all_text: "select" }); }); } and: var html="<form><table><tr><td>Fruit </td><td><select id='fruit' onChange ='getautosuggest()'>"+ "<option selected value=''>select fruit</option>"+ "<option value='ap'>Apple</option>"+ "<option value='pe'>Pear</option>"+ "<option value='ch'>Cherry</option>"+ "</select></td></tr>"+ "<tr><td>Sort </td><td><input type='text'id='sort'/></td></ tr>"+ "<input type='button' value='Save' onclick='saveData()'/></ form>"; Maybe this can help someone else Georges -- You received this message because you are subscribed to the Google Groups "Google Maps JavaScript API v3" group. To post to this group, send email to google-maps-js-api-v3@googlegroups.com. To unsubscribe from this group, send email to google-maps-js-api-v3+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-maps-js-api-v3?hl=en.