Testing data before

blarg

Hi All,
So I get some data using a pretty standard definition:

$('#overview_all').dataTable( {
    "ajax": "./data.php?view_name=vt_all_requests_by_service&system_id="+system_id,
    "paging":   false,
    "ordering": false,
    "info":     false,
    "filter":     false //this is actually "search"
} );

However, sometimes no data is returned, in which case the resulting "data" object contains "false".
How can I test for this? DT fails rather hideously when it receives this, giving all the usual alerts. What I want to do is intercept the data before DT gets it and then stop DT from trying to do anything if there's no data.

Any thoughts? Thanks.