Ho to simulate a right clik (contextmenu) event ?

Ho to simulate a right clik (contextmenu) event ?

I use the plugin jquery.contextMenu.js to open a custom popup menu when a user right click to a specific html element.
Nox, I want to show this popup menu when a simple onclick event occurs in a specific element.
I have see that JQuery propose trigger method but there is no oncontextmenu event !

How can I do ?

Thanks for help.

Sam