<script type="text/javascript">
function confirmBox(){
if(document.getElementById("checked").checked==true)
{
document.getElementById("submitBtn").disabled="";
}else{
document.getElementById("submitBtn").disabled="disabled";
}
}
</script>
<li><input id="checked" type="checkbox"/> 同意注册协议</li>
<li><input id="submitBtn" type='submit' name='Submit' value='注 册' class="insub" disabled="disabled"></li>
#增加#选注#注册#协议#必须