Problem opening modal dialog in combination with tabs

Problem opening modal dialog in combination with tabs


Hi,
I am using tabs in combination with modal dialogs.
Within multiple tabs I have some buttons which can open a modal
dialog.
When I am om ‘tab1’ the modal dialog opens perfectly. If I go to the
second tab the modal dialog on this page also opens fine.
Problems are starting when I switch back to the first tab, when I
click at the button no modal dialog appears.
Anyone fammiliar with this problem ?