Datatables with an Ajax Source - odd paramater in the request

Tokamak

I am using sAjaxSource to get my table data which is working fine but when DataTables makes the Ajax request its sending an extra parameter in the request.

My request url looks like this
[code]
'sAjaxSource': "http://ukknulp-inet-01/it/dhcp/api/optiontypes?format=datatables"
[/code]

The php page receives an extra parameter - here the output from Firebugs Params tab.
[quote]
_ 1344937718257
format datatables
[/quote]

What is this extra parameter used for?
Right now I have just added it to my code as an expected parameter then ignore it but I would rather know whats its for!

Thanks

allan

Its jQuery's anti-cache parameter: http://api.jquery.com/jQuery.ajax/ (look under 'cache').

Allan

Tokamak

Ahahh thankyou!