javascript如何取出GridView 模板列中textbox的值

Question

javascript如何取出GridView 模板列中textbox的值,该值手动输入<asp:TemplateField HeaderText="可领用劳保用品名称">  
                    <ItemTemplate>
                        <asp:TextBox ID="txt_Klylbypmc" runat="server"  Text='<%# Eval("klylbypmc") %>'></asp:TextBox>
                    </ItemTemplate>
                    <FooterTemplate>
                        &nbsp;<asp:TextBox ID="txt_Klylbypmc" runat="server"></asp:TextBox>
                    </FooterTemplate>
               </asp:TemplateField><script language="javascript" type="text/javascript">
                function sel()
               {
                //var inputstr = document.getElementById("GridView1$ctl12$txt_Klylbypmc").innerText;
                //alert(inputstr);
               }
</script>

Answer 1

getElementsByTagName("input")；
再判断下它的type ;