Scrolbar under Tabular Form

Hello,

I have a Table with about 70 columns, so it goes far outside the right border of Internet Explorer.

I want to set a horizontal scrollbar beneath it and the table should automatically have the width of the browserwindow.

My try:

Tabular Form -> Region Headder:

<div style="overflow: scroll; width: auto; overflow-y: hidden;">

Tabular Form -> Reagion Footer:

</div>

It shows the scrollbar but still has the complete lenght and doesn't get cut at the end of the browserwindow (scrollbar completely filled with barrel).

Is there any variable with the actual width or some other way i could shrink the table?