这种无边框的弹出窗口如何用JS实现？

window.open好像做不到这样无边框吧，用DIV，但DIV不是浮动的，也不能拖动，请高手指点，谢谢！另要求：可拖动，有关闭按钮！汗.............自己竟然... window.open 好像做不到这样无边框吧，用DIV，但DIV 不是浮动的，也不能拖动，请高手指点，谢谢！
另要求：可拖动，有关闭按钮！
汗............. 自己竟然研究出来了，就用DIV，定义position 与 display ，但不会做拖动展开

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#热议# 空调使用不当可能引发哪些疾病？

白狐仙人
推荐于2016-10-16 · TA获得超过1236个赞

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...你可以啊
的确,拖动是用js做的

给你个demo看下:
<!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" />
<title>一款很不错的Js控制div层拖动/拖放代码丨芯晴网页特效丨CsrCode.Cn</title>
</head>

<body>

<script>

    var isIE = (document.all) ? true : false;
    // Demo by /
    var $ = function (id) {
        return "string" == typeof id ? document.getElementById(id) : id;
    };

    var Class = {
        create: function () {
            return function () { this.initialize.apply(this, arguments); }
        }
    }

    var Extend = function (destination, source) {
        for (var property in source) {
            destination[property] = source[property];
        }
    }

    var Bind = function (object, fun) {
        return function () {
            return fun.apply(object, arguments);
        }
    }

    var BindAsEventListener = function (object, fun) {
        return function (event) {
            return fun.call(object, (event || window.event));
        }
    }

    var CurrentStyle = function (element) {
        return element.currentStyle || document.defaultView.getComputedStyle(element, null);
    }

    // Demo by /
    function addEventHandler(oTarget, sEventType, fnHandler) {
        if (oTarget.addEventListener) {
            oTarget.addEventListener(sEventType, fnHandler, false);
        } else if (oTarget.attachEvent) {
            oTarget.attachEvent("on" + sEventType, fnHandler);
        } else {
            oTarget["on" + sEventType] = fnHandler;
        }
    };

    function removeEventHandler(oTarget, sEventType, fnHandler) {
        if (oTarget.removeEventListener) {
            oTarget.removeEventListener(sEventType, fnHandler, false);
        } else if (oTarget.detachEvent) {
            oTarget.detachEvent("on" + sEventType, fnHandler);
        } else {
            oTarget["on" + sEventType] = null;
        }
    };

    //拖放程序
    var Drag = Class.create();
    Drag.prototype = {
        //拖放对象
        initialize: function (drag, options) {
            this.Drag = $(drag); //拖放对象
            this._x = this._y = 0; //记录鼠标相对拖放对象的位置
            this._marginLeft = this._marginTop = 0; //记录margin
            //事件对象(用于绑定移除事件)
            this._fM = BindAsEventListener(this, this.Move);
            this._fS = Bind(this, this.Stop);

            this.SetOptions(options);
            // Demo by /
            this.Limit = !!this.options.Limit;
            this.mxLeft = parseInt(this.options.mxLeft);
            this.mxRight = parseInt(this.options.mxRight);
            this.mxTop = parseInt(this.options.mxTop);
            this.mxBottom = parseInt(this.options.mxBottom);

            this.LockX = !!this.options.LockX;
            this.LockY = !!this.options.LockY;
            this.Lock = !!this.options.Lock;

            this.onStart = this.options.onStart;
            this.onMove = this.options.onMove;
            this.onStop = this.options.onStop;

            this._Handle = $(this.options.Handle) || this.Drag;
            this._mxContainer = $(this.options.mxContainer) || null;

            this.Drag.style.position = "absolute";
            //透明
            if (isIE && !!this.options.Transparent) {
                //填充拖放对象
                with (this._Handle.appendChild(document.createElement("div")).style) {
                    width = height = "100%"; backgroundColor = "#fff"; filter = "alpha(opacity:0)"; fontSize = 0;
                }
            }
            //修正范围
            this.Repair();
            addEventHandler(this._Handle, "mousedown", BindAsEventListener(this, this.Start));
        },
        //设置默认属性
        SetOptions: function (options) {
            this.options = {//默认值
                Handle: "", //设置触发对象（不设置则使用拖放对象）
                Limit: false, //是否设置范围限制(为true时下面参数有用,可以是负数)
                mxLeft: 0, //左边限制
                mxRight: 9999, //右边限制
                mxTop: 0, //上边限制
                mxBottom: 9999, //下边限制
                mxContainer: "", //指定限制在容器内
                LockX: false, //是否锁定水平方向拖放
                LockY: false, //是否锁定垂直方向拖放
                Lock: false, //是否锁定
                Transparent: false, //是否透明
                onStart: function () { }, //开始移动时执行
                onMove: function () { }, //移动时执行
                onStop: function () { } //结束移动时执行
            };
            Extend(this.options, options || {});
        },
        //准备拖动
        Start: function (oEvent) {
            if (this.Lock) { return; }
            this.Repair();
            //记录鼠标相对拖放对象的位置
            this._x = oEvent.clientX - this.Drag.offsetLeft;
            this._y = oEvent.clientY - this.Drag.offsetTop;
            //记录margin
            this._marginLeft = parseInt(CurrentStyle(this.Drag).marginLeft) || 0;
            this._marginTop = parseInt(CurrentStyle(this.Drag).marginTop) || 0;
            //mousemove时移动 mouseup时停止
            addEventHandler(document, "mousemove", this._fM);
            addEventHandler(document, "mouseup", this._fS);
            if (isIE) {
                //焦点丢失
                addEventHandler(this._Handle, "losecapture", this._fS);
                //设置鼠标捕获
                this._Handle.setCapture();
            } else {
                //焦点丢失
                addEventHandler(window, "blur", this._fS);
                //阻止默认动作
                oEvent.preventDefault();
            };
            //附加程序
            this.onStart();
        },
        //修正范围
        Repair: function () {
            if (this.Limit) {
                //修正错误范围参数
                this.mxRight = Math.max(this.mxRight, this.mxLeft + this.Drag.offsetWidth);
                this.mxBottom = Math.max(this.mxBottom, this.mxTop + this.Drag.offsetHeight);
                //如果有容器必须设置position为relative或absolute来相对或绝对定位，并在获取offset之前设置
                !this._mxContainer || CurrentStyle(this._mxContainer).position == "relative" || CurrentStyle(this._mxContainer).position == "absolute" || (this._mxContainer.style.position = "relative");
            }
        },
        //拖动
        Move: function (oEvent) {
            //判断是否锁定
            if (this.Lock) { this.Stop(); return; };
            //清除选择
            window.getSelection ? window.getSelection().removeAllRanges() : document.selection.empty();
            //设置移动参数
            var iLeft = oEvent.clientX - this._x, iTop = oEvent.clientY - this._y;
            //设置范围限制
            if (this.Limit) {
                //设置范围参数
                var mxLeft = this.mxLeft, mxRight = this.mxRight, mxTop = this.mxTop, mxBottom = this.mxBottom;
                //如果设置了容器，再修正范围参数
                if (!!this._mxContainer) {
                    mxLeft = Math.max(mxLeft, 0);
                    mxTop = Math.max(mxTop, 0);
                    mxRight = Math.min(mxRight, this._mxContainer.clientWidth);
                    mxBottom = Math.min(mxBottom, this._mxContainer.clientHeight);
                };
                //修正移动参数
                iLeft = Math.max(Math.min(iLeft, mxRight - this.Drag.offsetWidth), mxLeft);
                iTop = Math.max(Math.min(iTop, mxBottom - this.Drag.offsetHeight), mxTop);
            }
            //设置位置，并修正margin
            if (!this.LockX) { this.Drag.style.left = iLeft - this._marginLeft + "px"; }
            if (!this.LockY) { this.Drag.style.top = iTop - this._marginTop + "px"; }
            //附加程序
            this.onMove();
        },
        //停止拖动
        Stop: function () {
            //移除事件
            removeEventHandler(document, "mousemove", this._fM);
            removeEventHandler(document, "mouseup", this._fS);
            if (isIE) {
                removeEventHandler(this._Handle, "losecapture", this._fS);
                this._Handle.releaseCapture();
            } else {
                removeEventHandler(window, "blur", this._fS);
            };
            //附加程序
            this.onStop();
        }
    };
</script>

<style>
#idContainer{ border:10px solid #990000; width:600px; height:300px;}
#idDrag{ border:5px solid #C4E3FD; background:#C4E3FD; width:50px; height:50px; top:50px; left:50px;}
#idHandle{cursor:move; height:25px; background:#0000FF; overflow:hidden;}
</style>

<div id="idContainer">
<div id="idDrag"><div id="idHandle"></div></div>
</div>

<input id="idReset" type="button" value="复位" />
<input id="idLock" type="button" value="锁定" />
<input id="idLockX" type="button" value="锁定水平" />
<input id="idLockY" type="button" value="锁定垂直" />
<input id="idLimit" type="button" value="范围锁定" />
<input id="idLimitOff" type="button" value="取消范围锁定" />
<br />拖放状态：<span id="idShow">未开始</span>

<script>
    var drag = new Drag("idDrag", { mxContainer: "idContainer", Handle: "idHandle", Limit: true,
        onStart: function () { $("idShow").innerHTML = "开始拖放"; },
        onMove: function () { $("idShow").innerHTML = "left：" + this.Drag.offsetLeft + "；top:" + this.Drag.offsetTop; },
        onStop: function () { $("idShow").innerHTML = "结束拖放"; }
    });

    $("idReset").onclick = function () {
        drag.Limit = true;
        drag.mxLeft = drag.mxTop = 0;
        drag.mxRight = drag.mxBottom = 9999;
        drag.LockX = drag.LockY = drag.Lock = false;
    }

    $("idLock").onclick = function () { drag.Lock = true; }
    $("idLockX").onclick = function () { drag.LockX = true; }
    $("idLockY").onclick = function () { drag.LockY = true; }
    $("idLimit").onclick = function () { drag.mxRight = drag.mxBottom = 200; drag.Limit = true; }
    $("idLimitOff").onclick = function () { drag.Limit = false; }
</script>

</body>
</html>


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