<script language="javascript" type ="text/javascript" >

        var a = document.getElementById("<%=grid.ClientID%>");

        function textChange() {

            var e = event.srcElement;               //获取元素所在的行的行号（表头行号从0开始）。注意：parentElement只适用于IE浏览器，而parentNode则符合DOM标准。             

            //var rowIndex=e.parentElement.parentElement.rowIndex

            var rowIndex = e.parentNode.parentNode.rowIndex;                //获取GridView控件               

            var gdview = document.getElementById("<%=grid.ClientID %>");

            var tr = gdview.getElementsByTagName("tr");            //分别获取选定行标注点的X、Y坐标

             var zycj = tr[rowIndex].getElementsByTagName("td")[3].getElementsByTagName("input")[0].value;

             var sjcj = gdview.rows(rowIndex).cells[3].childNodes[1].value;

             alert(zycj);return;

             if (zycj != "" && sjcj != "") {

                 var zycjvar = parseFloat(zycj);

                 if (isNaN(zycjvar)) {

                     alert('请输入正确成绩格式！');

                     return;

                 }