How to get image src in jquery

Getting image src is sometimes very important for doing some task. So this is a simple tutorial of <strong>get image src in jquery</strong>

HTML

<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
<div class="img1">
	<img class="imgtag"...

JavaScript

$(document).ready(function(e) {
        $('#knowimgsrc').click(function(){
				$imgsrc=$('.img1 img').attr('src');
				alert("Image Source Is :"+$imgsrc);
			});
    });