Need a simple ajax priority system. users can input various variables to sort listings. once they input a variable (via a form) an onChange calls the xmlhttp request which gets the listings that match via a php page and also loads google map points. The problem is if the map is still loading tiles and the user changes a variable that request is stalled waiting for the tiles to load. I need some sort of an abortRequest() function or system to allow the listings to be updated imediatly aso it either pauses the google map tiles or some how gets priority then loads the listings, and resumes the map tile loading.
kayak(dot)com is an example of this. Do a search for a hotel and change the parameters while the map is still loading, the listings are updated and do not wait for the map to finish loading.
Further details and a current working example ( with no priority system ) will be provided to those we are interested in working with.