js给页面的循环列表的超链接地址添加一个参数

Question

 就是给第一个超链接的地址追加一个&airline=CA的参数，但是循环要怎么写啊，求大神指明
    <c:forEach items="${page.list}" var="tFlight" >
            <tr style="text-align: center;">
                <td>
                   ${tFlight.flightNo}
                </td>
                <td>
                    ${tFlight.depAirport}
                </td>
                <td>
                    ${tFlight.arrAirport}
                </td>
                <td>
                    ${tFlight.startDate}
                </td>
                <td >
                    ${tFlight.endDate}
                </td>
                <td>
                    ${tFlight.frequency}
                </td>
                <shiro:hasPermission name="seat:tFlight:edit"><td>
                <div style="text-align:center;">
                    <a id="myA" href="${ctx}/seat/asr/tFlight/form?flightRuleId=${tFlight.flightRuleId}&productId=${tFlight.productId}" class="icon-edit" title="点击可以修改哦！" onclick="add()" style="width: 20px"></a>
                    <a  href="${ctx}/seat/asr/tFlight/delete?flightRuleId=${tFlight.flightRuleId}&productId=${tFlight.productId}"  class="icon-trash" title="点击可以删除哦！" onclick="add();return confirmx('确认要删除该航线产品吗？', this.href)" style="width: 20px"></a>
                </div>
                </td></shiro:hasPermission>
             </tr>
        </c:forEach>
我现在是这么写的
function add() {
            var air=document.getElementById("airline").value; 
            if(air != ""){
             var a=document.getElementById("myA"); 
             var hrefs =a.getAttribute("href")+"&airline=" + air;
             a.setAttribute("href",hrefs);      
             return false;
            }
        };

Answer 1

   <a id="myA" href="${ctx}/seat/asr/tFlight/form?flightRuleId=${tFlight.flightRuleId}&productId=${tFlight.productId}" class="icon-edit" title="点击可以修改哦！" onclick="add(this)" style="width: 20px"></a>


function add(a) {
            var air=document.getElementById("airline").value; 
            if(air != ""){
             ////////////var a=document.getElementById("myA"); //通过dom传递当前点击的连接对象，要不你id一样了这句只能获取第一个出现的对象
             var hrefs =a.getAttribute("href")+"&airline=" + air;
             a.setAttribute("href",hrefs);      
             return false;
            }
        };