test.cs

// this function loads a document directly server-side
function loadDocument(documentName)
{
    // call the Web API endpoint LoadDocument with the
    // stored, current ConnectionID
    var serviceURL = "/api/TXDocument/LoadDocument?ConnectionID="
        + txSettings.ConnectionID +
        "&DocumentName=" + documentName;

    $.ajax({
        type: "GET",
        url: serviceURL,
        contentType: 'application/json',
        success: successFunc,
        error: errorFunc
    });

    function successFunc(data, status) {
        // set the loaded document name
        loadedDocument = documentName;
    }

    function errorFunc() {
        console.log("An error occured.");
    }
}