基于cookie的多个选项卡更新div元素值。

I'm inserting and removing div's based on value of cookie. the value of cookie is updated by checking and un-checking the check box. this works fine for a single tab. but how to update div's in other tab also if multiple tabs are opened for same page. The cookie value is updated as it remains same for browser, but how to add or remove div's with respect to cookie value.I'm inserting and removing div's based on value