浏览器全屏非全屏切换

 1     //进入全屏
 2     function requestFullScreen() {
 3         var de = document.documentElement;
 4         if (de.requestFullscreen) {
 5             de.requestFullscreen();
 6         } else if (de.mozRequestFullScreen) {
 7             de.mozRequestFullScreen();
 8         } else if (de.webkitRequestFullScreen) {
 9             de.webkitRequestFullScreen();
10         }
11     }
12 
13     //退出全屏
14     function exitFullscreen() {
15         var de = document;
16         if (de.exitFullscreen) {
17             de.exitFullscreen();
18         } else if (de.mozCancelFullScreen) {
19             de.mozCancelFullScreen();
20         } else if (de.webkitCancelFullScreen) {
21             de.webkitCancelFullScreen();
22         }
23     }