Javascript - Refresh Parent Page After Greybox Close?

I have a blog, where people can make comments. I've now decided to put the "writecomments.aspx" file in a Greybox popup-window. It works, but I want to close the window from codebehind (or javascript) after the comment is written. And then I want to refresh the blog page (the parent page) to show the new comment.

This is the code that opens the greybox (writecomments.aspx) page:

<a href='WriteComments.aspx?BlogId=<%# DataBinder.Eval(Container, "DataItem.id") %>' rel="gb_page_center[500, 500]">Skriv kommentar</a>

In the writecomments.aspx file, I just have 2 textboxes and 1 button (save-button). How can I make the greybox window close itself, and then somehow refresh the blog.aspx? Or maybe just a specific updatepanel for the current comments?

Edit

I got it working, I had to put this code in the codebehind, after the db-insert: Page.ClientScript.RegisterStartupScript(this.GetType(), "close", "parent.parent.GB_hide();", true); And for the refresh of the parent page, I edited the gb_scripts.js file on line 12 from false to true: this.reload_on_close=true;

EDIT AGAIN

Actually, I modified it a bit, so, I put the gb_scripts.js file back to it's default state, and I just just the followig line of code in the WriteComments.aspx codebehind file, just after the db-insert:

Page.ClientScript.RegisterStartupScript(this.GetType(), "close", "parent.parent.window.location.reload();parent.parent.GB_hide();", true);

Now, the Greybox is closing, and then, the blog page is refreshing, just like I want :)