List PageIndex - problem

 Hi,

    I have standard list in Sharepoint 2010. I can grouping or I can filtering on each column. The problem is when I choose some item which is for example 150 item in the list I have paging below of that list. (100-150)

When I click that item some custom form is opened, but when I click Back button on that form I would like to get previous state of list with this item and paging between F.ex. 100-150. Now always when I back a have first list index - 1-50. Please help how resolve that issue. Thanx!