img src="DV_getcode.asp" height="18" alt="验证码,看不清楚?请点击刷新验证码" style="cursor : pointer;" onclick="this.src='DV_getcode.asp'" />
<tr>
<td class="altbg1" width="21%"><span class="bold">验证码</span></td>
<td class="altbg2"><div class="input"><input type="text" name="seccodeverify" size="4" maxlength="4" id="seccodeverify" onBlur="checkseccode()"> <img id="seccode" style="cursor:pointer" onclick="this.src='seccode.php?update=' + Math.random()" src="seccode.php" class="absmiddle" alt="" /></div><div class="notice" id="checkseccode"> 如果看不清数字，请点图片刷新验证码</div>
<script type="text/javascript">$('seccode').src = 'seccode.php?update=' + Math.random()</script></td>
</tr>