Creating a wrapper function for jQuery ajax

I am creating a few functions that wrap around jQuery's ajax function to make it a bit quicker and easier to preform a request. For this I have this JavaScript file:

$( document ).ready( function ()
{
    var ajax = {
        url: "", type: "", success: "", beforeSend: "",
        preform: function ( $url, $type, $success, $beforeSend )
        {
            $.ajax( {
                url: this.url = $url,
                type: this.type = $type,
                success: setSuccess(this.success = $success),
                beforeSend: setBeforeSend(this.beforeSend = $beforeSend)
            } );
        }
    };

    function setSuccess( $selector )
    {
        return function ( $r )
        {
            $( $selector ).html( $r );
        };
    }

    function setBeforeSend( $selector )
    {
        return function ()
        {
            $( $selector ).html( "Loading..." );
        };
    }
} );

And this is used with the following line of code:

    ajax.preform( "script/javascript/ajaxfiles/print.php", "GET", "#success", "#before" );

This is working brilliantly, but is there a better way to do this?