HTML DOM tabIndex 属性
定义和用法
tabIndex 属性可设置或返回按钮的 tab 键控制次序。
语法
- buttonObject.tabIndex=tabIndex
实例
下面的例子将返回按钮的 tab 键控制次序:
- <html>
- <head>
- <script type="text/javascript">
- function showTabIndex()
- {
var b1=document.getElementById('b1').tabIndex;
var b2=document.getElementById('b2').tabIndex;
var b3=document.getElementById('b3').tabIndex;
- document.write("Tab index of Button 1: " + b1);
- document.write("<br />");
- document.write("Tab index of Button 2: " + b2);
- document.write("<br />");
- document.write("Tab index of Button 3: " + b3);
- }
- </script>
- </head>
- <body>
- <form>
- <input type="button" id="b1" tabIndex="1" value="Button 1" />
- <br />
- <input type="button" id="b2" tabIndex="2" value="Button 2" />
- <br />
- <input type="button" id="b3" tabIndex="3" value="Button 3" />
- <br />
- <input type="button" onclick="showTabIndex()"
- value="Show tabIndex" />
- </form>
- </body>
- </html>