When using custom image sizes like:
function customImageSetup () {
add_theme_support( 'post-thumbnails' );
add_image_size('grid_1 mini square', 60, 60, TRUE);
add_image_size('grid_2', 160);
add_image_size('grid_2 square', 160, 160, TRUE);
add_image_size('grid_4', 360);
add_image_size('grid_4 square', 360, 360, TRUE);
add_image_size('grid_6', 560);
add_image_size('grid_6 square', 560, 560, TRUE);
add_image_size('grid_8', 760);
add_image_size('grid_8 square', 760, 760, TRUE);
add_image_size('grid_10', 960);
add_image_size('grid_12', 1160, FALSE);
}
Is there a build-in wordpress method to output a random image size?
Thanks