jquery获取radiobutton的选中值

<input name="payoptionRlist" id="payoptionRlist91" runat="server" type="radio" value="9" />

<input name="payoptionRlist" id="payoptionRlist43" runat="server" type="radio" value="43" />

<input name="payoptionRlist" id="payoptionRlist34" runat="server" type="radio" value="34" />

在多个radiobutton中获取选中payoptionRlist的值

var paymentTypeID = $("input:radio[name$=payoptionRlist]:checked").val();//获取后缀名为payoptionRlist的选中值

<asp:Label runat="server" ID="lerror" ForeColor="red" cssClass="errror"></asp:Label>

给服务器控件赋值：$("[id$=lerror]").html("initTxn error!");