usbl_website_customvariable_object.js

/**
 * Sending custom variables as one object.
 * This by default will allow you to add any additional values if you resend the customObj.
 */
// Define an object to hold the custom variables
var customObj = {};
// Define and set variables
var usernameU = "McAwesome";
var sessionU = "12afe34df";
var referrerU = "" + document.referrer;
// Fill the customObj with the earlier created custom variables
customObj.Username = usernameU;
customObj.SessionID = sessionU;
customObj.DocumentReferrer = referrerU;
//Send custom variables by assigning the customObj to the 'custom' object in Usabilla
window.usabilla_live('data', {
    'custom': customObj
});

/** Updating/appending custom variables using one object
 * If you want update or append value to the Custom Variables you can simply use the customObj.
 * Update or append any value that you have and update them in the customObj and resend it again using the customObj 
 */
// Update the variables and value
usernameU = "McAwesomeNew";
//Update or append them to the customObj
customObj.Username = usernameU;
//Resend if you changed/added values in the customObj
window.usabilla_live('data', {
    'custom': customObj
});