01.<select id="main">
02. <option value="menu1">Menu1</option>
03. <option value="menu2">Menu2</option>
04. <option value="menu3">Menu3</option>
05.</select>
06.<div id="menu1" clss="detail_menu">
07. <menu for menu 1 only>
08.</div>
09.<div id="menu2" clss="detail_menu">
10. <menu for menu 2 only>
11.</div>
12.<div id="menu3" clss="detail_menu">
13. <menu for menu 3 only>
14.</div>
15.<script>
16.$('#main').change((e)=>{
17. $('.detail_menu').hide();
18. $('#'+$(e.target).val()).show();
19.});
20.</script>
Load balance : Server 01
