超链接隐藏参数值通过form表单post方式传值

<form name="form1222" action="list.aspx" method="post">
<input type="hidden" >
</form>

<script>
function forwardTo(rid){
document.getElementById('mid').value=rid;   //赋值给隐藏域字段
//alert(document.getElementById('mid').value);
document.form1222.submit();                     //提交表单
}
</script>

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