But json.php (the file can even be an text file) file doesn't have any thing related to php related actions. It just having an json formatted data. So, it doesn't make the effect when i kept the file in php -- because the plugin which i having right now just reads the json content (what ever the json.php or json.txt file have) from the file for the autocomplete search. So, whether there is any thing we can do with the prototype.js to make it work or am wrong here.
You can check the link (demo) where i got this library. http://www.interiders.com/wp-content/demos/ProtoMultiSelect/test.html For code download, http://www.interiders.com/2008/02/18/protomultiselect-02/ Srini
