验证码<put type="text" name="validate"><img src="{dede:global.cfg_cmspath/}/clude/vdimgck.php" align="absmiddle" onclick="this.src='{dede:global.cfg_cmspath/}/clude/vdimgck.php?tag='+Math.random();" style="cursor:poter;">

$mid = (isset($mid) && is_numeric($mid)) ? $mid : 0;

$validate = empty($validate) ? '' : strtolower(trim($validate));
$svali = strtolower(GetCkVdValue());
if($validate=='' || $validate != $svali)
{
	ResetVdValue();
	ShowMsg('验证码不正确!',$_SERVER["HTTP_REFERER"],0,1000);
	exit();
}