jsp中关于图片的问题

<br/>请选择头像 <br/>
 <div class="t" style="WIDTH:50%">
<img src="image/head/1.gif"/><input type="radio" name="head" value="1.gif" checked="checked">
<img src="image/head/2.gif"/><input type="radio" name="head" value="2.gif">
<img src="image/head/3.gif"/><input type="radio" name="head" value="3.gif">
<img src="image/head/4.gif"/><input type="radio" name="head" value="4.gif">
<img src="image/head/5.gif"/><input type="radio" name="head" value="5.gif">
<BR/>
<img src="image/head/6.gif"/><input type="radio" name="head" value="6.gif">
<img src="image/head/7.gif"/><input type="radio" name="head" value="7.gif">
<img src="image/head/8.gif"/><input type="radio" name="head" value="8.gif">
<img src="image/head/9.gif"/><input type="radio" name="head" value="9.gif">
<img src="image/head/10.gif"/><input type="radio" name="head" value="10.gif">
<BR/>
<img src="image/head/11.gif"/><input type="radio" name="head" value="11.gif">
<img src="image/head/12.gif"/><input type="radio" name="head" value="12.gif">
<img src="image/head/13.gif"/><input type="radio" name="head" value="13.gif">
<img src="image/head/14.gif"/><input type="radio" name="head" value="14.gif">
<img src="image/head/15.gif"/><input type="radio" name="head" value="15.gif">
<br/>  本地头像&nbsp;<input type="file" class="input" name="fileName" size="50" style="margin-top:2px;margin-bottom:4px">
 </div>各位大侠：如何获取，用户选择的图片的src