省、市、地区联动选择JS封装类 联动菜单-Provincial, municipal and regional linkage linkage menu selection JS wrapper class

利用ListBox和DropDownList控件完成某部门对应员工的显示。（创建部门表，创建员工表）理解客户端与服务器之间的关系。-Using ListBox and the DropDownList control corresponds to the completion of a department staff of the show. (Create departments table, create employees table) to understand the client

Javascr ipt脚本,实现了省\市\县三级菜单级联,添加后直接使用即可,超简单.-Javascr ipt scr ipts, to achieve the provincial \ city \ county levels, cascading menu, you can add directly to use, super simple.