Flexible DIV with min/max width

Hi All,

I want to create a flexible DIV based layout.
Here is design layout, globtier 1st template

Layout should have horizontal scrolled on 800 resolutions.
And, It should not stretch after 1200 page width, that means pages should be stretch from 800 to 1200 px in width.
It should support at least IE/Firefox and Opera browser.

Can you help me to create this layout?