<script language="javascript" type="text/javascript">  
//全局变量
var m = 1;
    // 增加成员函数   
       function addSort(){   
        var name1 = document.getElementById("name1").value;   
var name2 = document.getElementById("name2").value;   
var name3 = document.getElementById("name3").value;   
var name4 = document.getElementById("name4").value;   
         
           var row = document.createElement("tr");     //创建一个tr,标签
           row.setAttribute("id", "menusTr");   
   
           var cell1 = document.createElement("td");    //创建一个td,标签
   var cell2 = document.createElement("td");   
   var cell3 = document.createElement("td");   
   var cell4 = document.createElement("td");   
           
   cell1.appendChild(document.createTextNode(name1)); //createTextNode 创建的是内容
   cell2.appendChild(document.createTextNode(name2)); 
   cell3.appendChild(document.createTextNode(name3)); 
   cell4.appendChild(document.createTextNode(name4)); 
           row.appendChild(cell1);
   row.appendChild(cell2);
   row.appendChild(cell3);
   row.appendChild(cell4);
   
           var deleteButton = document.createElement("input");   
           deleteButton.setAttribute("type", "button");   
           deleteButton.setAttribute("value", "删除");   
           deleteButton.onclick = function () { deleteSort("menusTr"); };   
   
           cell = document.createElement("td");   
           cell.appendChild(deleteButton);   
           row.appendChild(cell);   
           document.getElementById("sortList").appendChild(row);   
        //清空输入框   
            document.getElementById("name1").value = "";   
    document.getElementById("name2").value = "";   
document.getElementById("name3").value = "";   
document.getElementById("name4").value = "";   

      }   
       // 删除成员函数   
       function deleteSort(id){   
              if (id!=null){   
                  var rowToDelete = document.getElementById(id);   
                  var sortList = document.getElementById("sortList");   
                  sortList.removeChild(rowToDelete);  
  
              }   
  
       }   
</script>