jquery动态添加附件(jquery table tr)

//HTML

<a href="javascript:void(0)" onclick="AddAttachment()">[点击添加附件]</a>

<table cellpadding="0" cellspacing="3" id="id_attachmentpanel"></table>

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//新增文章页面
    function AddAttachment() {
        var objTable = $("#id_attachmentpanel");
        var intCount = $("#id_attachmentpanel tr").children().size() / 2 + 1;
        if (intCount > 5) { alert("附件不能超过5个"); return; }
        objTable.append("<tr><td>" + intCount + ". <input type='file' name='file" + intCount + "' onchange='FileExtChecking(this,1)' /></td><td><a href='javascript:void(0)' onclick='AddAttachment()'>[增加]</a><a href='javascript:void(0);' onclick='DisposeTr(this)'>[取消]</a></td></tr>");
        $("#id_attachmentpanel a").hide();
        $("#id_attachmentpanel a").last().show();
        if (intCount < 5) { $("#id_attachmentpanel a").last().prev().show(); }
    }
    function DisposeTr(arg_obj_item) {
        var objTr = $(arg_obj_item).parent().parent();
        objTr.remove();
        $("#id_attachmentpanel a").last().show();
        $("#id_attachmentpanel a").last().prev().show();
    }

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//编辑文章页面


    function AddAttachment() {
        var intAttach = '<%=intAttach %>';
        var objTable = $("#id_attachmentpanel");
        var intCount = $("#id_attachmentpanel tr").children().size() / 2 + 1;
        if (intCount > (5-intAttach)) { alert("附件不能超过5个"); return; }
        objTable.append("<tr><td>" + intCount + ". <input type='file' name='file" + intCount + "' onchange='FileExtChecking(this,1);' /></td><td><a href='javascript:void(0)' onclick='AddAttachment()'>[增加]</a><a href='javascript:void(0);' onclick='DisposeTr(this)'>[取消]</a></td></tr>");
        $("#id_attachmentpanel a").hide();
        $("#id_attachmentpanel a").last().show();
        if (intCount < (5-intAttach)) { $("#id_attachmentpanel a").last().prev().show(); }
    });
    function DisposeTr(arg_obj_item) {
        var objTr = $(arg_obj_item).parent().parent();
        objTr.remove();
        $("#id_attachmentpanel a").last().show();
        $("#id_attachmentpanel a").last().prev().show();
    }

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