After clicking A.ASP's educational background, use the onclick to jump out of the window B.ASP, click the date selector after clicking B.ASP INPUT box, and select the date value to return B.ASP.
The current problem is that after opening B.ASP, the new window cannot be jumped again when the date is selected. It is also a sub-page from the parent page to open a new window, can only appear in the subpage (Grands cannot be opened) ).
a.asp
Education background
B.ASP
C.htm is a date selector that returns a value to B.ASP with JavaScript.
