show image in new window on button click in asp.net

<asp:HyperLink id="hyperlink1"
                  ImageUrl="images/pict.jpg"
                  NavigateUrl="http://www.microsoft.com"
                  Text="Microsoft Official Site"
                  Target="_blank"
                  runat="server"/>

<asp:ImageButton ... OnClientClick="javascript:window.open('url_to_image');" >

target="_blank"

javascript:window.open('url_to_image');

<div>
	<ul>
		<li>
			<div>
				<a href="#" target="_blank">
					<img src="img/1.jpg" />
				</a>
			</div>
		</li>
		<li>
			<div>
				<a href="#"  target="_blank">
					<img src="img/2.jpg" />
				</a>
			</div>
		</li>
		<li>
			<div>
				<a href="#"  target="_blank">
					<img src="img/3.jpg" />
				</a>
			</div>
		</li>
		<li>
			<div>
				<a href="#"  target="_blank">
					<img src="img/4.jpg" />
				</a>
			</div>
		</li>		
	</ul>
</div>

<script type="text/javascript">
    $(document).ready(function(){
        $('ul li>div>a').click(function(){
        debugger;
            var path = window.location.protocol + window.location.host;
            window.open(path + $(this).find('>img').attr('src'), '', 'width=640,height=480');
        });
    });
</script>