Need to finish a project started by another team

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Project Budget (USD)
$30 - $250

Project Description:
Need to do the following:

Please see this page to know what Im talking about

On the left there is the objects list, we need to conect it to the map and make the following modifications:
1) Make this list fully ajax powered in Facebook comments style (no Load more button at the bottom, just loading data as it is scrolled down);
2) Make the ability to filter this list in future. For now there mast be one checkbox, cheking it will show in the list only objects on map (for example if I zoom in and see only 10 jbjects on map, there must be 10 objects in the list, if checkbox is not checked, we must see all objects of the category) The checkbox is checked by dafault.
3) Hide the markers on map when some filter is applyed to the list (for example: If i filter only objects starting with "a" I must see only this objects on map) The filter will be made lateкб but we need to make this functionality now)

Plus fix the following bugs:
1) When you login, the LOGIN button is changing to the "Profile Username". It was changing without page reload, but something broke and now the changes are seen only after page reload...

1) User Profile page must be Ajax and the "Reload Data" button press must update data on page.

As a good axample of what we are trying to achive is

Skills required:
AJAX, Google Earth, HTML, PHP
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