Function grabHandler

RandomSexyPic/randomSexyPic.user.js:495–501

(img,add)

        img.style.cursor="grab";
    }
    function grabHandler(img,add){
        if(add){
            img.addEventListener("mousedown",mousedownHandler);
        }else{
            img.removeEventListener("mousedown",mousedownHandler);
        }
    }

    function restoreImg(img){
        hasFloatImg=false;