adding scrolling to graph

[jw01]

hello

im having some difficulty trying to place a scroll bar on the graph. i have a graph taht contains data for each week over the past year and thus it would be great to be able to have a scroll bar so the graph itself isnt blown out of propotion. i was wondering if anyone can guide me as its been driving me pretty nuts trying to put one in place (im somewhat of a new user in excel - not advance) so for the gurus out there, pls help thx you, God bless!

i have attach the workbook