Source code

...
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,type == 'image',
        set(popup,
            bgcolor=0xFFFFFF,
            bgalpha=1,
        );
        addlayer("popup_image", img);
        set(img,
            url=get(content),
            align=center,
            width=-20, height=-20,
            parent=get(popup.name),
            onloaded='popup_imageloaded()'
        );
		onover="
			set(iszoom, true);
			set(startzoom, true);
			copy(copy_mousefovchange, control.mousefovchange);
			copy(copy_touchzoom, control.touchzoom);
			set(control.mousefovchange, 0);
			set(control.touchzoom, false);
		";
		onout="
			set(iszoom, false);
			copy(control.mousefovchange, copy_mousefovchange);
			copy(control.touchzoom, copy_touchzoom);
		";
		ondown.touch="onover();";
		onup.touch="onout();";
    );
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