replace src charge due li tag

i have html given below:

<ul id="thumbsphotos">
     <li src="/images/1alvaston-hall-relaxing-lg.jpg"  onclick="updatephoto (this.title)"><img src="/images/1alvaston-hall-relaxing-sl.jpg"  width="56" height="56"></li>
     <li onclick="updatephoto(this.title)" src=""><img src="" width="56"  height="56"></li>
     <li onclick="updatephoto(this.title)" src=""><img src="" width="56"  height="56"></li>
</ul>

now, i wish reinstate src <li> tags <img> tags controlling innerhtml. this, cost be:

<ul id="thumbsphotos">
     <li title="/images/1alvaston-hall-relaxing-lg.jpg"  onclick="updatephoto(this.title)"><img src="/images/1alvaston-hall-relaxing-sl.jpg"  width="56" height="56"></li>
     <li onclick="updatephoto(this.title)" title=""><img src="" width="56" height="56"></li>
     <li onclick="updatephoto(this.title)" title=""><img src="" width="56" height="56"></li>
</ul>