using a javascript popup window to add some text into the opener window's textbox

Hi,

Now i have the main page(opener) and another opened javascript window. Inside that window i have a few checkboxes. When i click those checkboxes, it will actually add some strings to one of the opener's textbox...

Any ideas for me?

onclick="opener.document.formNameHere.textboxNameHere.value+=' blah'"

thanks man, that worked...