脚本说明： 第一步:把如下代码加入<head>区域中: <SCRIPT LANGUAGE="JavaScript"> <!-- Begin var interval = 2.5; // delay between rotating images (in seconds) var random_display = 1; // 0 = no, 1 = yes interval *= 1000;
var image_index = 0; image_list = new Array(); image_list[image_index++] = new imageItem("01.jpg"); image_list[image_index++] = new imageItem("02.jpg"); image_list[image_index++] = new imageItem("03.jpg"); image_list[image_index++] = new imageItem("04.jpg"); var number_of_image = image_list.length; function imageItem(image_location) { this.image_item = new Image(); this.image_item.src = image_location; } function get_ImageItemLocation(imageObj) { return(imageObj.image_item.src) } function generate(x, y) { var range = y - x + 1; return Math.floor(Math.random() * range) + x; } function getNextImage() { if (random_display) { image_index = generate(0, number_of_image-1); } else { image_index = (image_index+1) % number_of_image; } var new_image = get_ImageItemLocation(image_list[image_index]); return(new_image); } function rotateImage(place) { var new_image = getNextImage(); document[place].src = new_image; var recur_call = "rotateImage('"+place+"')"; setTimeout(recur_call, interval); } // End --> </script>
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