how to set referer by webbrowser

VC + + using webbrowser control to do a simple browser, in Navigate2 where to set the referer, but there is no effect, only deal with php detection can not detect or for javascript

php with echo $ _SERVER ["HTTP_REFERER"]; the javascript aspects document.write (the document.referrer);

When interception head sent using BeforeNavigate2Explorer1 events then again send the same can only deal with php, javascript test can not ask you Daniel, good. Thank you