Cacher is the code snippet organizer for pro developers

<script src="http://code.jquery.com/jquery-latest.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function () {
$(window).scroll(function () {
var myvideos = document.getElementsByTagName("video")
for (var i=0;i<myvideos.length;i++){
var	myvideo = myvideos[i]
var a = myvideo.offsetTop;
if (a >= $(window).scrollTop() && a < ($(window).scrollTop()+$(window).height())) {
myvideo.play();
//alert("div在可视范围");
}
else{myvideo.pause();
	}}
});
});
</script>