Please guide me to the purpose of blockUI with a simple demonstration.
BlockUI adds elements to the DOM to give it both the appearance and behavior of blocking user interaction. Usage is very simple; to block user activity for the page: $. blockUI();
The BlockUI plugin is used to simulate synchronous AJAX behavior. When activated, it stops the user from interacting with the page until it is deactivated.
The user interface block (UIB) is the control block used by the CALL and CALL DL/I interfaces to pass response codes and the PCB address list to application programs using CALL DL/I services. The UIB is acquired when a task issues its first PSB schedule request specifying that it requires a UIB.
Take a look at the demos on the plugin page.
You need to do have the following in a page (in this order)
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