multiple selected items from listbox send to another form

Hi, please help, I need to get selected items from a listbox control and send them to another webform that needs to be displayed in a another window. I used javascript window.open to show the webform in new window, but i dont know how to get the selected items from first window.

Thanks,

Jewel

You could maybe pass them as url parameters, or save the values into a session varible(youd then nedd to have the listbox auto postback).