function mw_image_window(img, w, h) { if (!w || !h) { var w = img.tmp_width; var h = img.tmp_height; } var winl = (screen.width-w)/2; var wint = (screen.height-h)/3; if (w >= screen.width) { winl = 0; h = (parseInt)(w * (h / w)); } if (h >= screen.height) { wint = 0; w = (parseInt)(h * (w / h)); } var js_url = "