json_encode and jquery

[Confidence]

hi guys,

 

i want to transfer a php array through jquery to another php file as an input paramter, for processing....so i do in  first php file

 

 

$tarif_json=json_encode($tarif_data ['provider']);

 

then i put it in a hidden form field

 

<input type="hidden" name="json" id="json" value="
<?php echo $tarif_json ;?>" >

 

and then i pass it to jquery to pass to another php page:

 

	$('#tarif').load("ajax/order.php?atask=gettarifs", {

		'json' : $('#json').val()
	});

 

but when i debug with firebug in console view, to view ajax processes, i see json is empty under POST.

 

what is the problem here?

and is there another way to send the array to the other php page?

 

thanks in advance.