js验证 两次密码是否一致

另外注意：如果是<a target=_blank target="_blank" href="http://www.hrb.com:81/bootstrap/js/jquery-1.7.2.min.js" style="font-family: monospace;font-size:14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: pre-wrap; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;">bootstrap  在验证是不是必填项时，可以div里或td等里， 加 required/></td></a>

<form id="signupForm" class="regleader" action="<?=base_url() ?>member/resetpassword"  method="post" name="signupForm" >

  <tr>   
    <td width="180" height="40" align="right">输入新密码</td>
    <td > <input type="password" style="width:180px" name="password" class="inputxt" value="" id="password" required/></td>
  </tr>

  <tr>
    <td height="40" align="right">再次确认新密码</td>
    <td><input type="password" value="" name="repassword" class="inputxt" id="repassword" required="" style="width:180px"/></td>    
  </tr>
  <tr>    
    <td ></td>
    <td ><button type="submit" class="btn btn-primary" id="login" style="width:200px"  onclick="return insertManager()" > 下一步 </button>
        
    </td>
    
  </tr>
<tr>
   <td height="10" colspan="2"></td>
</tr>

<tr><td height="10" colspan="3"></td></tr>
  <tr><td colspan="3" align="center"><a href="<?=base_url() ?>bootstrap/intro.asp"> >>> 点击这里，反馈问题及提出建议和想法 >>></a></td></tr>
</table>

</form>

<div>
 
 
 
</div>

   </div>
  </div>  
</div>
           
            
                        

</div>

</div>

<script type="text/javascript">
function insertManager() {
    var password = document.getElementById("password").value;
    var repassword = document.getElementById("repassword").value;
         if(password!=repassword){
             window.alert("您输入的新密码与确认密码确认不一致");
             signupForm.repassword.focus();
             return false;
             
             }
          return true;
    }
</script>