// 推断各种浏览器，找到正确的方法

function launchFullscreen(element) {

  if(element.requestFullscreen) {

    element.requestFullscreen();

  } else if(element.mozRequestFullScreen) {

    element.mozRequestFullScreen();

  } else if(element.webkitRequestFullscreen) {

    element.webkitRequestFullscreen();

  } else if(element.msRequestFullscreen) {

    element.msRequestFullscreen();

  }

}

// 启动全屏!

launchFullScreen(document.documentElement); // 整个网页

launchFullScreen(document.getElementById("videoElement")); // 某个页面元素

退出全屏

// 推断浏览器种类

function exitFullscreen() {

  if(document.exitFullscreen) {

    document.exitFullscreen();

  } else if(document.mozCancelFullScreen) {

    document.mozCancelFullScreen();

  } else if(document.webkitExitFullscreen) {

    document.webkitExitFullscreen();

  }

}

// 退出全屏模式!

exitFullscreen();

方法二：

var opt='top=0, left=0, toolbar=no, menubar=no, scrollbars=no, resizable=no,location=no, status=no';

window.open(youurl, "", opt);