Thx for reply Ninja Lead, this solution is only for one (default Wide) size. But, i need to set my custom Narrow and Wide size, and also max-width for Fluid option, to let my visitors choose from Cpanel which screen size to use. I got some modules with pictures and i need to know which is the min and max walue of site to choose the right size of this pictures, to be shown properly with all options. With modules, which have an “auto” option for module size work fine. But modules without “auto” option must be styled with css, div’s and so on…
i solved this problem with customization of template.php and layout.css files in plugins/system/jat3/jat3… folder.
I ask that, because i thought, there is easyest way to do this.