How can I access the UNID from the Quik! Form Viewer?

The UNID value is always included in a hidden field in the Quik! Form Viewer when a form is generated. Sometimes customers may want to retrieve the UNID value on a form for various reasons. To do this, customers can read this field in the DOM. To get the UNID via jQuery, customers can use the following function:
$('#QFVUNID').val().replace('UNID=','')

If desired, customers can use this function inside of any JavaScript-related Quik! property, such as ESignVendorSuccessJavaScript. Note that the replace part is needed because the hidden field value has a UNID= prefix and that's not part of the UNID itself.