<!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>js随机飘动的广告图片代码</title> </head> <body> <div id="main" style="position:absolute;"> <div style="text-align:right;cursor:pointer;" id="close">关闭</div> <a href="https://blog.csdn.net/qq_38881495" target="_blank"><img src="https://cs.m.xczhihui.com/xcview/images/geren.jpg" border="0" width="214" height="73" /></a> </div> </body> </html> <script src="http://libs.baidu.com/jquery/1.11.3/jquery.min.js"></script> <script> <!--//公共脚本文件 main.js function addEvent(obj, evtType, func, cap) { cap = cap || false; if (obj.addEventListener) { obj.addEventListener(evtType, func, cap); return true; } else if (obj.attachEvent) { if (cap) { obj.setCapture(); return true; } else { return obj.attachEvent("on" + evtType, func); } } else { return false; } } function removeEvent(obj, evtType, func, cap) { cap = cap || false; if (obj.removeEventListener) { obj.removeEventListener(evtType, func, cap); return true; } else if (obj.detachEvent) { if (cap) { obj.releaseCapture(); return true; } else { return obj.detachEvent("on" + evtType, func); } } else { return false; } } function getPageScroll() { var xScroll, yScroll; if (self.pageXOffset) { xScroll = self.pageXOffset; } else if (document.documentElement && document.documentElement.scrollLeft) { xScroll = document.documentElement.scrollLeft; } else if (document.body) { xScroll = document.body.scrollLeft; } if (self.pageYOffset) { yScroll = self.pageYOffset; } else if (document.documentElement && document.documentElement.scrollTop) { yScroll = document.documentElement.scrollTop; } else if (document.body) { yScroll = document.body.scrollTop; } arrayPageScroll = new Array(xScroll, yScroll); return arrayPageScroll; } function GetPageSize() { var xScroll, yScroll; if (window.innerHeight && window.scrollMaxY) { xScroll = document.body.scrollWidth; yScroll = window.innerHeight + window.scrollMaxY; } else if (document.body.scrollHeight > document.body.offsetHeight) { xScroll = document.body.scrollWidth; yScroll = document.body.scrollHeight; } else { xScroll = document.body.offsetWidth; yScroll = document.body.offsetHeight; } var windowWidth, windowHeight; if (self.innerHeight) { windowWidth = self.innerWidth; windowHeight = self.innerHeight; } else if (document.documentElement && document.documentElement.clientHeight) { windowWidth = document.documentElement.clientWidth; windowHeight = document.documentElement.clientHeight; } else if (document.body) { windowWidth = document.body.clientWidth; windowHeight = document.body.clientHeight; } if (yScroll < windowHeight) { pageHeight = windowHeight; } else { pageHeight = yScroll; } if (xScroll < windowWidth) { pageWidth = windowWidth; } else { pageWidth = xScroll; } arrayPageSize = new Array(pageWidth, pageHeight, windowWidth, windowHeight) return arrayPageSize; } var AdMoveConfig = new Object(); AdMoveConfig.IsInitialized = false; AdMoveConfig.AdCount = 0; AdMoveConfig.ScrollX = 0; AdMoveConfig.ScrollY = 0; AdMoveConfig.MoveWidth = 0; AdMoveConfig.MoveHeight = 0; AdMoveConfig.Resize = function () { var winsize = GetPageSize(); AdMoveConfig.MoveWidth = winsize[2]; AdMoveConfig.MoveHeight = winsize[3]; AdMoveConfig.Scroll(); } AdMoveConfig.Scroll = function () { var winscroll = getPageScroll(); AdMoveConfig.ScrollX = winscroll[0]; AdMoveConfig.ScrollY = winscroll[1]; } addEvent(window, "resize", AdMoveConfig.Resize); addEvent(window, "scroll", AdMoveConfig.Scroll); function AdMove(id, addCloseButton) { if (!AdMoveConfig.IsInitialized) { AdMoveConfig.Resize(); AdMoveConfig.IsInitialized = true; } AdMoveConfig.AdCount++; var obj = document.getElementById(id); obj.style.position = "absolute"; var W = AdMoveConfig.MoveWidth - obj.offsetWidth; var H = AdMoveConfig.MoveHeight - obj.offsetHeight; var x = W * Math.random(), y = H * Math.random(); var rad = (Math.random() + 1) * Math.PI / 6; var kx = Math.sin(rad), ky = Math.cos(rad); var dirx = (Math.random() < 0.5 ? 1 : -1), diry = (Math.random() < 0.5 ? 1 : -1); var step = 1; var interval; if (addCloseButton) { var closebtn = document.createElement("div"); obj.appendChild(closebtn); closebtn.onclick = function () { obj.style.display = "none"; clearInterval(interval); closebtn.onclick = null; obj.onmouseover = null; obj.onmouseout = null; obj.MoveHandler = null; AdMoveConfig.AdCount--; if (AdMoveConfig.AdCount <= 0) { removeEvent(window, "resize", AdMoveConfig.Resize); removeEvent(window, "scroll", AdMoveConfig.Scroll); AdMoveConfig.Resize = null; AdMoveConfig.Scroll = null; AdMoveConfig = null; } } } obj.MoveHandler = function () { obj.style.left = (x + AdMoveConfig.ScrollX) + "px"; obj.style.top = (y + AdMoveConfig.ScrollY) + "px"; rad = (Math.random() + 1) * Math.PI / 6; W = AdMoveConfig.MoveWidth - obj.offsetWidth; H = AdMoveConfig.MoveHeight - obj.offsetHeight; x = x + step * kx * dirx; if (x < 0) { dirx = 1; x = 0; kx = Math.sin(rad); ky = Math.cos(rad); } if (x > W) { dirx = -1; x = W; kx = Math.sin(rad); ky = Math.cos(rad); } y = y + step * ky * diry; if (y < 0) { diry = 1; y = 0; kx = Math.sin(rad); ky = Math.cos(rad); } if (y > H) { diry = -1; y = H; kx = Math.sin(rad); ky = Math.cos(rad); } } this.SetLocation = function (vx, vy) { x = vx; y = vy; } this.SetDirection = function (vx, vy) { dirx = vx; diry = vy; } this.Run = function () { var delay = 10; interval = setInterval(obj.MoveHandler, delay); obj.onmouseover = function () { clearInterval(interval); } obj.onmouseout = function () { interval = setInterval(obj.MoveHandler, delay); } } } //--> </script> <script type="text/javascript"> $(function() { $("#close").click(function() { $("#main").hide(); }); }) var ad1 = new AdMove("main", true); ad1.Run(); </script>
