function insertField()
        {
            var objList, objText;
            objList = document.getElementById("<asp:Literal ID="LiteralListName" runat="server"></asp:Literal>");
            objText = document.getElementById("<asp:Literal ID="LiteralTextName" runat="server"></asp:Literal>");
            if(objList && objText)
            {
                if(objList.value != "请选择字段名称插入")
                {
                    if(objText.value == "")
                    {
                        objText.value = objList.value;
                    }
                    else
                    {
                        var range;
                        objText.focus();
                        range = document.selection.createRange();
                        range.moveStart("character", -1);
                        range.select();
                        if(range.text.length == 0)
                        {
                            objText.value = objText.value + objList.value;
                        }
                        else
                        {
                            range.text = range.text + objList.value;
                        }
                        objText.focus();
                    }
                }
            }
        }