Close a popup after postback

I have some aspx code(behind) evaluating a condition that, if true, should cause a child of the existing window to close. Javascript code as below would have been used to create the popup and I can call JS function that should close it.


The problem appears to be that the main window loses scope of the child because of a necessary postback. Is there a way to maintain a reference to the child so I can close it after the main postsback?

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did you tried to use html hidden field?
juststeveAuthor Commented: a sample?
sorry about hidden can use this (assuming that window is still open):'','myWin').close();

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