ultimate-vim/sources_non_forked/snipmate-snippets/javascript-jquery/getjson.snippet

$.getJSON('<+/path/to/file.cgi+>',{
 <+<+param1+>: "<+value1+>", <+param2+>: "<+value2+>"+>},
 function(json){
    <+//stuff to do after event occurs;+>
});