how to make main panel cannot be handled when subpanels are being diplayed?

[IceCode]

Hello,I have created a main panel and a sub panel ,when I clicked a button on the main panel ,the sub panel was displayed.And here is the question : when the sub panel  is being shown,I still can handle my main panel .What I want is the sub panel performed like a popup,when it's being shown,the  main panel cannot be handled.Does anyone knows how to do it?Thanks.

[Wolfgang · Accepted solution]

yes, someone knows

You can use the function InstallPopup ( panel_handle ) to create a modal popup panel.

There is a demo available here.

[IceCode]

thank you!it does help me!!

[Wolfgang]

You're welcome