1:form表单里在验证码处按照以下调用:
<div align="right" class="style1">验证码:</div></td>
<td width="50%" height="28" valign="bottom"><input name="VerifyCode" type="text" id="VerifyCode" size="8" maxlength="6" />
<img src='CheckCode.asp' style='cursor:hand;' onClick="this.src='CheckCode.asp'" alt= "看不清楚,请点击更换验证码"/>
2:接收后判断
If Session("CheckCode") <> Request.Form("VerifyCode") Then
Call AlertMsg("请输入正确的验证码!")
End If