Jquery to Zoomin and Zoomout and for Shapes of images on click of button
<p>I am working on Image upload and I need to add functionality to zoomin and zoomout and shapes (like landscape, portrait) of image on click of buttons. But nothing happens when I am clicking on the buttons. My code is: </p>

<pre><code>$(document).ready(function() {

    var imagesize = $('img').width();
    alert(imagesize);
    $('#zoomout').on('click', function() {
        imagesize = imagesize - 5;
        $('img').width(imagesize);
    });

    $('#zoomin').on('click', function() {
        imagesize = imagesize + 5;
        $('img').width(imagesize);
    });

}); 
</code></pre>
