JavaScript实现飘窗功能

实现飘窗功能很简单

html代码

    
    
    
    



    
 
            

                平台自律公约
            
        
    

JavaScript

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;
}


// 获取页面的高度、宽度
function GetPageSize() {
    var xScroll, yScroll;
    if (window.innerHeight && window.scrollMaxY) {
        xScroll = window.innerWidth + window.scrollMaxX;
        yScroll = window.innerHeight + window.scrollMaxY;
    } else {
        if (document.body.scrollHeight > document.body.offsetHeight) { // all but Explorer Mac    
            xScroll = document.body.scrollWidth;
            yScroll = document.body.scrollHeight;
        } else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari    
            xScroll = document.body.offsetWidth;
            yScroll = document.body.offsetHeight;
        }
    }

    var windowWidth, windowHeight;
    if (self.innerHeight) { // all except Explorer    
        if (document.documentElement.clientWidth) {
            windowWidth = document.documentElement.clientWidth;
        } else {
            windowWidth = self.innerWidth;
        }
        windowHeight = self.innerHeight;
    } else {
        if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode    
            windowWidth = document.documentElement.clientWidth;
            windowHeight = document.documentElement.clientHeight;
        } else {
            if (document.body) { // other Explorers    
                windowWidth = document.body.clientWidth;
                windowHeight = document.body.clientHeight;
            }
        }
    }

    // for small pages with total height less then height of the viewport    
    if (yScroll < windowHeight) {
        pageHeight = windowHeight;
    } else {
        pageHeight = yScroll;
    }

    // for small pages with total width less then width of the viewport    
    if (xScroll < windowWidth) {
        pageWidth = xScroll;
    } else {
        pageWidth = windowWidth;
    }
    arrayPageSize = new Array(pageWidth, pageHeight, windowWidth, windowHeight);
    return arrayPageSize;
}



//广告脚本文件 AdMove.js
/*
例子   加
  是为了判断飘窗内容为空时隐藏飘窗

    

    ***** content ******
    

var ad=new AdMove("Div2"); ad.Run(); */ 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"; obj.style.zIndex = "999"; 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("span"); closebtn.className = 'close_btn'; closebtn.innerHTML = "关闭"; closebtn.style.color = "#ff9232"; closebtn.style.position = "relative" closebtn.style.marginLeft = "110px" closebtn.style.top = "-80px" 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; } } /*判断飘窗内容是否为空，为空就隐藏*/ function removeHTMLTag(str) { //str = str.replace(/<\/?[^>]*>/g,''); //去除HTML tag str = str.replace(/[ | ]*\n/g, '\n'); //去除行尾空白 str = str.replace(/[\r\n]/g, ""); //去除多余空行 str = str.replace(/ /ig, '');//去掉  return str; } var oDiv = obj.getElementsByTagName('div')[0]; if (removeHTMLTag(oDiv.innerHTML) == "") { obj.style.display = "none"; } } 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); } } }

如果觉得不错可以一件三连支持一下