Child window cannot display webpage

[win]

Thank you very much, I really admire your programming level. 

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Now there is a problem,

 all the child windows will close after 20 seconds,  but I want to set the wait time for each open window separately.

How to change the code 

Macro wait

Code:

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,sel i
,,case 1
,,sub.Dialog2(hwnd "www.yahoo.com")   ;;Wait 20 seconds close the window
,,case 2
,,sub.Dialog2(hwnd "www.bing.com")   ;;Wait 30 seconds close the window