jquery.media.js 视频播放时怎么禁止快进

大侠们，jquery.media.js，如何隐藏进度条或者禁止快进？

functionvidplay() {varvideo = document.getElementById("Video1");varbutton = document.getElementById("play");if(video.paused) {
video.play();
button.textContent ="||";
}else{
video.pause();
button.textContent =">";
}
}functionrestart() {varvideo = document.getElementById("Video1");
video.currentTime = 0;
}functionskip(value) {varvideo = document.getElementById("Video1");
video.currentTime += value;
}// Replace these with your own video files.HTML5 Video is required for this example.Download the videofile.[]<<>>>