I have a dialogue box and datepicker inside it.

Dialogue box is opened on clicking a link.

when form is long that links comes down to the page and scroll bar appears which is exactly as i wanted.

Now issue comes. when i open a datepicker.

calender comes. I select a date. it populates the textbox correctly. But scroll on parent page jumps to the top.

either focus is changed or something with z-index.

behavior which i requires is focus should be on dialogue box only. scroll position should not change with date.