Hi,
One way to overcome the size limit is to use the POST method. If you're using jQuery you can set the type property to 'POST'
Here's an example from the jQuery website:
$.ajax({
type: "POST",
url: "some.php",
data: "name=John&location=Boston",
success: function(msg){
alert( "Data Saved: " + msg );
}
});
See also http://api.jquery.com/jQuery.ajax/