纵向js相册 缩略图上onmouseover 显示图片有随机特效

 var thumbs = document.getElementsByClassName('thumb_img');

 

   for (var i=0; i<thumbs.length; i++) {

    thumbs[i].onmouseover = function () {

	var img = $('main_img');

		img.src=this.rel; 

	    img.link=this.link;		

	};

    thumbs[i].onclick = function () {location = this.link}

}

$('main_img').onclick = function () {location = this.link;}