织梦dede自定义表单加入验证码问题修正

require_once(DEDEINC.'/membermodel.cls.php');

elseif($do == 2)
    {  在这个地方加入代码块 
       //验证码验证
        $svali = GetCkVdValue();
         if(preg_match("/1/",$safe_gdopen)){
             if(strtolower($vdcode)!=$svali || $svali=='')
             {
                 ResetVdValue();
                 ShowMsg('验证码错误！', '-1');
                 exit();
             }  
         }

<input type="text" class="intxt w200" style="width: 50px; text-transform: uppercase;" id="vdcode" name="vdcode" class="code"/>
@@##@@ 看不清？

<script type="text/javascript"> 
 $ = jQuery;  
 function changeAuthCode() {  
 var num = new Date().getTime();  
 var rand = Math.round(Math.random() * 10000);  
 num = num + rand;  
 $('#ver_code').css('visibility','visible');  
 if ($("#vdimgck")[0]) {  
 $("#vdimgck")[0].src = "../include/vdimgck.php?tag=" + num;  
 }  
 return false;  
 }  
 </script>