myCRED: Custom Transfer AJAX Script

/**
 * myCRED Transfer jQuery
 * Handles transfer requests and autocomplete of user login names.
 * Adjusted to also include a user message.
 * @requires jQuery
 * @requires jQuery UI
 * @requires jQuery Autocomplete
 * @version 1.1
 */
jQuery(function($){
    // Transfer function
    // Mod: Add transfer message to ajax call
    var transfer_creds = function( to, creds, label, message ) {
        $.ajax({
            type : "POST",
            data : {
                action    : 'mycred-transfer-creds',
                sender    : myCRED.user_id,
                recipient : to,
                amount    : creds,
                token     : myCRED.token,
                tmessage  : message
            },
            dataType : "JSON",
            url : myCRED.ajaxurl,
            // Before we start
            beforeSend : function() {
                // Prevent users from clicking multiple times
                $('.mycred-click').attr( 'value', myCRED.working );
                $('.mycred-click').attr( 'disabled', 'disabled' );
            },
            // On Successful Communication
            success    : function( data ) {
                // Debug - uncomment to use
                //console.log( data );
                // Remove disable
                $('.mycred-click').attr( 'value', label );
                $('.mycred-click').removeAttr( 'disabled' );
                // Security token could not be verified.
                if ( data == 'error_1' ) {
                    alert( myCRED.error_1 );
                }
                // Communications error.
                else if ( data == 'error_2' ) {
                    alert( myCRED.error_2 );
                }
                // Recipient not found.
                else if ( data == 'error_3' ) {
                    alert( myCRED.error_3 );
                }
                // Trying to send to excluded user.
                else if ( data == 'error_4' ) {
                    alert( myCRED.error_4 );
                }
                // Incorrect amount.
                else if ( data == 'error_5' ) {
                    alert( myCRED.error_5 );
                }
                // This myCRED Add-on has not yet been setup!
                else if ( data == 'error_6' ) {
                    alert( myCRED.error_6 );
                }
                // Insufficient funds.
                else if ( data == 'error_7' ) {
                    alert( myCRED.error_7 );
                }
                // Transfer Limit exceeded.
                else if ( data == 'error_8' ) {
                    alert( myCRED.error_8 );
                }
                // Transfer Completed.
                else if ( data == 'ok' ) {
                    alert( myCRED.completed );

                    if ( myCRED.reload == '1' )
                        location.reload();
                }
                else {
                    $('.mycred-click').attr( 'value', data );
                    if ( myCRED.reload == '1' )
                        location.reload();
                }
            },
            // Error (sent to console)
            error      : function( jqXHR, textStatus, errorThrown ) {
                alert( myCRED.error_2 );
                location.reload();
                // Debug - uncomment to use
                //console.log( jqXHR );
            }
        });
    };

    // Autocomplete
    // @api http://api.jqueryui.com/autocomplete/
    var cache = {};
    $('input.mycred-autofill').autocomplete({
        minLength: 2,
        source: function( request, response ) {
            var term = request.term;
            if ( term in cache ) {
                response( cache[ term ] );
                return;
            }

            var send = {
                action : "mycred-autocomplete",
                token  : myCRED.atoken,
                string : request
            };
            $.getJSON( myCRED.ajaxurl, send, function( data, status, xhr ) {
                cache[ term ] = data;
                // Debug - uncomment to use
                //console.log( data );
                //console.log( status );
                response( data );
            });
        },
        messages: {
            noResults: '',
            results: function() {}
        },
        appendTo : 'div.transfer-to'
    });

    // Attempt Transfer
    $('.mycred-click').click(function(){
        // To:
        var receipient = $(this).parent().prev().children( 'div' ).children( 'input' );
        var to = $(receipient).val();
        // Debug - uncomment to use
        //console.log( to );

        // Amount:
        var amount = $(this).prev().children( 'input' );
        var creds = $(amount).val();
        // Debug - uncomment to use
        //console.log( creds );

        // Mod: Get the message fields value
        var message = $( '#mycred-transfer-message' ).val();

        // If elements are not emepty attempt transfer
        if ( to != '' && creds != '' ) {
            transfer_creds( to, creds, $(this).attr( 'value' ), message );
        }
    });
});