<script type="text/javascript" language="javascript">
//驗(yàn)證碼 
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>

if(!empty($dede_fields))
{
 $validate = empty($validate) ? '' : strtolower(trim($validate)); 
 $svali = strtolower(GetCkVdValue()); 
if(($validate=='' || $validate != $svali) && preg_match("/6/",$safe_gdopen)){
 ResetVdValue(); 
 ShowMsg('驗(yàn)證碼不正確!',$dede_add,0,1000); 
 exit; 
}