querystrings and autopostback

How do I have a contol postback and include a querystring?

I have a listbox and when the user clicks a selection, I want to pass listbox.selecteditem.text as a querystring.

Thanks for any info.

Do an event handler for its onClick event and post the selected items as a querystring

Can you give some example code please? The only way I know how is

VB Code:

response.write "<a href='myasp.asp?dir=d:/'>link</a>"

I don't know what to put in the click event

VB Code:

private sub ListBox1_onclick()
???????
end sub

Thx

visual basic code:--------------------------------------------------------------------------------
private sub ListBox1_onclick()
Response.Redirect ("SomePage.aspx?id=" & ListBox1.SelectedIndex)
end sub
--------------------------------------------------------------------------------

OK, That is nice and easy.
Thanks.