Hi ,
Try this Html markup. follow below steps
1) add jQuery plun-in in your page
2) Copy below markup and paste it in your html body section
<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>
Regards,
Sarva