弹出层详解，从简单到复杂

一、最简单的弹出

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<meta name="description" content="前端思考" />
<meta name="keywords" content="前端思考" />
<title>最简单的弹出层：前端思考</title>
<style>
*{margin:0;padding:0px;}
body{padding:30px;}
#show{width:300px;height:200px;display:none;padding:1px;position:relative;border:1px solid #4c77aa;background:#f2f7fd;margin-left:70px;zoom:1;}
#show h3{background:#4c77aa;color:#fff;font-size:14px;padding:5px;}
#show span{position:absolute;right:3px;top:3px;display:block;cursor:pointer;color:#fff;font-weight:bold;}
#show p{padding:5px;}
#text{font-size:12px;text-indent:2em;line-height:20px;}
</style>
<script type="text/javascript">
    function show(){
        var oShow = document.getElementById('show');
        oShow.style.display = 'block';
        var oClose = document.createElement("span");
            oClose.innerHTML = "×";
            oShow.appendChild(oClose);
            oClose.onclick = function(){
                oShow.style.display = 'none';
                oShow.removeChild(this);
            }
    }
</script>
</head>
<body>
<a onclick="show(); return false" href="#">请猛击我</a>
<div id="show">
    <h3>弹出层标题栏</h3>
    <p id="text">
        这里是弹出层内容，内容可以是文字、图片等，可以是iframe传进来，也可以用jQuery的load()传进来。如有什么不合理的或可以改进的，大家可以给我留言，共同学习。
    </p>
</div>
</body>
</html>

二、弹出层—到浏览器中央

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<meta name="description" content="前端思考" />
<meta name="keywords" content="前端思考" />
<title>弹出层—到浏览器中央：前端思考</title>
<style>
*{margin:0;padding:0px;}
body{padding:30px;}
#show{width:300px;height:200px;display:none;padding:1px;position:absolute;border:1px solid #4c77aa;background:#f2f7fd;zoom:1;}
#show h3{background:#4c77aa;color:#fff;font-size:14px;padding:5px;}
#show span{position:absolute;right:3px;top:3px;display:block;cursor:pointer;color:#fff;font-weight:bold;}
#show p{padding:5px;}
#text{font-size:12px;text-indent:2em;line-height:20px;}
</style>
<script type="text/javascript">
function show(){
        var iWidth = document.documentElement.clientWidth;
    var iHeight = document.documentElement.clientHeight;
    var oShow = document.getElementById('show');
    oShow.style.display = 'block';
        oShow.style.left = (iWidth-302)/2+"px";
    oShow.style.top = (iHeight-202)/2+"px";
    var oClose = document.createElement("span");
        oClose.innerHTML = "×";
        oShow.appendChild(oClose);
        oClose.onclick = function(){
            oShow.style.display = 'none';
            oShow.removeChild(this);
        }
    }
</script>
</head>
<body>
<a onclick="show(); return false" href="#">请猛击我（我会弹到中间）</a>
<div id="show">
    <h3>弹出层标题栏</h3>
    <p id="text">
        这里是弹出层内容，内容可以是文字、图片等，可以是iframe传进来，也可以用jQuery的load()传进来。如有什么不合理的或可以改进的，大家可以给我留言，共同学习。
    </p>
</div>
</body>
</html>

三、弹出层—到浏览器中央—背景变暗

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<meta name="description" content="前端思考" />
<meta name="keywords" content="前端思考" />
<title>弹出层—到浏览器中央—背景变暗：前端思考</title>
<style>
*{margin:0;padding:0px;}
body{padding:30px;}
#show{width:300px;height:200px;display:none;padding:1px;position:absolute;border:1px solid #4c77aa;background:#f2f7fd;z-index:11;zoom:1;}
#show h3{background:#4c77aa;color:#fff;font-size:14px;padding:5px;}
#show span{position:absolute;right:3px;top:3px;display:block;cursor:pointer;color:#fff;font-weight:bold;}
#show p{padding:5px;}
#text{font-size:12px;text-indent:2em;line-height:20px;}
#bgbox{position:absolute;left:0;top:0;background:#000;filter:alpha(opacity=30);opacity:0.3;z-index:10}
</style>
<script type="text/javascript">
function show(){
    var iWidth = document.documentElement.clientWidth;
    var iHeight = document.documentElement.clientHeight;
    var bgObj = document.createElement("div");
    bgObj.setAttribute("id","bgbox");
    bgObj.style.width = iWidth+"px";
    bgObj.style.height =Math.max(document.body.clientHeight, iHeight)+"px";
    document.body.appendChild(bgObj);
    var oShow = document.getElementById('show');
          oShow.style.display = 'block';
          oShow.style.left = (iWidth-302)/2+"px";
          oShow.style.top = (iHeight-202)/2+"px";
    function oClose(){
        oShow.style.display = 'none';
        document.body.removeChild(bgObj);
    }
    var oClosebtn = document.createElement("span");
          oClosebtn.innerHTML = "×";
          oShow.appendChild(oClosebtn);
    oClosebtn.onclick = oClose;
    bgObj.onclick = oClose;
}
</script>
</head>
<body>
<a onclick="show(); return false" href="#">请猛击我（我会弹到中间，同时背景变暗）</a>
<div id="show">
    <h3>弹出层标题栏</h3>
    <p id="text">
        这里是弹出层内容，内容可以是文字、图片等，可以是iframe传进来，也可以用jQuery的load()传进来。如有什么不合理的或可以改进的，大家可以给我留言，共同学习。
    </p>
</div>
</body>
</html>

四、弹出层—到浏览器中央—背景变暗—支持键盘[Esc]退出

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<meta name="description" content="前端思考" />
<meta name="keywords" content="前端思考" />
<title>弹出层—到浏览器中央—背景变暗—支持键盘[Esc]退出 ：前端思考</title>
<style>
*{margin:0;padding:0px;}
body{padding:30px;}
#show{width:300px;height:200px;display:none;padding:1px;position:absolute;border:1px solid #4c77aa;background:#f2f7fd;z-index:11;zoom:1;}
#show h3{background:#4c77aa;color:#fff;font-size:14px;padding:5px;}
#show span{position:absolute;right:3px;top:3px;display:block;cursor:pointer;color:#fff;font-weight:bold;}
#show p{padding:5px;}
#text{font-size:12px;text-indent:2em;line-height:20px;}
#bgbox{position:absolute;left:0;top:0;background:#000;filter:alpha(opacity=30);opacity:0.3;z-index:10}
</style>
<script type="text/javascript">
function show(){
    var iWidth = document.documentElement.clientWidth;
    var iHeight = document.documentElement.clientHeight;
    var bgObj = document.createElement("div");
    bgObj.setAttribute("id","bgbox");
    bgObj.style.width = iWidth+"px";
    bgObj.style.height =Math.max(document.body.clientHeight, iHeight)+"px";
    document.body.appendChild(bgObj);
    var oShow = document.getElementById('show');
        oShow.style.display = 'block';
        oShow.style.left = (iWidth-302)/2+"px";
        oShow.style.top = (iHeight-202)/2+"px";
    var oClosebtn = document.createElement("span");
        oClosebtn.innerHTML = "×";
        oShow.appendChild(oClosebtn);
    function oClose(){
        oShow.style.display = 'none';
        oShow.removeChild(oClosebtn);
        document.body.removeChild(bgObj);
    }
    oClosebtn.onclick = oClose;
    bgObj.onclick = oClose;
    function getEvent() {
        return window.event || arguments.callee.caller.arguments[0];
    }
    document.onkeyup = function(){
        var event = getEvent();
        if (event.keyCode == 27){
            oClose();
        }
    }
}
</script>
</head>
<body>
<a onclick="show(); return false" href="#">请猛击我（弹出层—到浏览器中央—背景变暗—支持键盘[Esc]退出）</a>
<div id="show">
    <h3>弹出层标题栏</h3>
    <p id="text">
        这里是弹出层内容，内容可以是文字、图片等，可以是iframe传进来，也可以用jQuery的load()传进来。如有什么不合理的或可以改进的，大家可以给我留言，共同学习。
    </p>
</div>
</body>
</html>

四、弹出层—到浏览器中央—背景变暗—支持键盘[Esc]退出—支持鼠标拖动

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<meta name="description" content="前端思考" />
<meta name="keywords" content="前端思考" />
<title>五、弹出层—到浏览器中央—背景变暗—支持键盘[Esc]退出—支持鼠标拖动 ：前端思考</title>
<style>
*{margin:0;padding:0px;}
body{padding:30px;}
#show{width:300px;height:200px;display:none;padding:1px;position:absolute;border:1px solid #4c77aa;background:#f2f7fd;z-index:11;zoom:1;}
#show h3{background:#4c77aa;color:#fff;font-size:14px;padding:5px;cursor:move}
#show span{position:absolute;right:3px;top:3px;display:block;cursor:pointer;color:#fff;font-weight:bold;}
#show p{padding:5px;}
#text{font-size:12px;text-indent:2em;line-height:20px;}
#bgbox{position:absolute;left:0;top:0;background:#000;filter:alpha(opacity=30);opacity:0.3;z-index:10}
</style>
<script type="text/javascript">
function show(){
    var iWidth = document.documentElement.clientWidth;
    var iHeight = document.documentElement.clientHeight;
    var bgObj = document.createElement("div");
    bgObj.setAttribute("id","bgbox");
    bgObj.style.width = iWidth+"px";
    bgObj.style.height =Math.max(document.body.clientHeight, iHeight)+"px";
    document.body.appendChild(bgObj);
    var oShow = document.getElementById('show');
        oShow.style.display = 'block';
          oShow.style.left = (iWidth-302)/2+"px";
        oShow.style.top = (iHeight-202)/2+"px";
    var oClosebtn = document.createElement("span");
        oClosebtn.innerHTML = "×";
        oShow.appendChild(oClosebtn);
    function oClose(){
        oShow.style.display = 'none';
            document.body.removeChild(bgObj);
        oShow.removeChild(oClosebtn);
    }
    oClosebtn.onclick = oClose;
    bgObj.onclick = oClose;
        function getEvent() {
        return window.event || arguments.callee.caller.arguments[0];
        }
    document.onkeyup = function(){
        var event = getEvent();
        if (event.keyCode == 27){
            oClose();
        }
    }
    var moveX = 0;
    var moveY = 0;
    var moveTop = 0;
    var moveLeft = 0;
    var moveable = false;
    var docMouseMoveEvent = document.onmousemove;
    var docMouseUpEvent = document.onmouseup;
    titleBar =  document.getElementById('titlebar');
    titleBar.onmousedown = function() {
        var evt = getEvent();
        moveable = true;
        moveX = evt.clientX;
        moveY = evt.clientY;
        moveTop = parseInt(oShow.style.top);
        moveLeft = parseInt(oShow.style.left);
        document.onmousemove = function() {
            if (moveable) {
                var evt = getEvent();
                var x = moveLeft + evt.clientX - moveX;
                var y = moveTop + evt.clientY - moveY;
                if ( x > 0 &&( x + 302 < iWidth) && y > 0 && (y + 202 < iHeight) ) {
                    oShow.style.left = x + "px";
                    oShow.style.top = y + "px";
                }
            }
        };
        document.onmouseup = function () {
            if (moveable) {
                document.onmousemove = docMouseMoveEvent;
                document.onmouseup = docMouseUpEvent;
                moveable = false;
                moveX = 0;
                moveY = 0;
                moveTop = 0;
                moveLeft = 0;
            }
        };
    }
}
</script>
</head>
<body>
<a onclick="show(); return false" href="#">请猛击我（弹出层—到浏览器中央—背景变暗—支持键盘[Esc]退出—支持鼠标拖动）</a>
<div id="show">
    <h3 id="titlebar">弹出层标题栏</h3>
    <p id="text">
        这里是弹出层内容，内容可以是文字、图片等，可以是iframe传进来，也可以用jQuery的load()传进来。如有什么不合理的或可以改进的，大家可以给我留言，共同学习。
    </p>
</div>
</body>
</html>
posted @ 2014-07-17 18:01  壁虎漫步.  阅读(234)  评论(0)  编辑  收藏  举报