39
Actually, it should be like this:
$xoopsTpl->assign( 'xoops_module_header' , '.XOOPS_URL.'/modules/mytabs/'.$options[3].'.css" />'.$xoopsTpl->get_template_vars("xoops_module_header") );
Anyway, this bug will only take place in XOOPS < 2.16 and XCL
The $xoTheme assign is correct, I just missed changing it for XoopsTpl that is required for older versions.
Thanks Mowaffak, have you test it? Is it working 99% now?