js遮罩层弹出框

昨天公司网站需要弹窗提示一些信息,要我在把弹窗的js代码和弹窗窗口html写在一起哪里需要就调用

不说那么多了,直接上代码,感觉肯定会有兼容问题,看到了一定指出呀

<style>    #H-dialog{display:none;position:absolute;z-index: 9999999;width:400px;height: auto; background-color: #fff;}    #H-dialog .close{float:right;font-size: 30px;margin-right: 10px;margin-top:5px;cursor:pointer;}    #H-dialog .title{height: 40px;padding-left:10px; font-size:20px; line-height:40px;}    #H-dialog #msgCont{height:36px; margin: 30px 0 50px;padding-left: 65px;font-size: 25px;line-height: 36px;vertical-align: middle; background: url(../Images/ui_alert.png) no-repeat 20px 50%;}</style><div id="H-dialog">    <a class="close" onclick="popupClose(this)">×</a>    <div class="title">提示</div>    <div id="msgCont">内容</div></div><script type="text/javascript">    //锁定背景屏幕    function lockScreen() {        var clientH = document.body.offsetHeight; //body高度        var clientW = document.body.offsetWidth; //body宽度        var docH = document.body.scrollHeight; //浏览器高度        var docW = document.body.scrollWidth; //浏览器宽度        var bgW = clientW > docW ? clientW : docW; //取有效宽        var bgH = clientH > docH ? clientH : docH; //取有效高        var blackBg = document.createElement("div");        blackBg.id = "blackBg";        blackBg.style.position = "absolute";        blackBg.style.zIndex = "99999";        blackBg.style.top = "0";        blackBg.style.left = "0";        blackBg.style.width = bgW+"px";        blackBg.style.height = bgH+"px";        blackBg.style.opacity = "0.4";        blackBg.style.backgroundColor = "#333";        document.body.appendChild(blackBg);    }    //关闭按钮事件    function popupClose(el) {        var blackBg = document.getElementById("blackBg");        blackBg && document.body.removeChild(blackBg);        el.parentNode.style.display = "none";    }    //自动关闭    function autoClose(id) {        id = id || "H-dialog";        var blackBg = document.getElementById("blackBg");        var objDiv = document.getElementById(id);        setTimeout(function(){            blackBg && document.body.removeChild(blackBg);            objDiv.style.display = "none";        },2000);    }    /**    *功能 : 弹窗信息    *参数1 : 提示信息内容    *参数2 : 提示信息状态默认0 为提示信息,1为成功信息    *参数3 : 弹窗div的id,默认"H-dialog"    *参数4 : 弹窗内容的id,默认"msgCont"    **/    function showMsg(msg) {        msg = msg || "请重新操作";        var status = arguments[1] || 0,        popupId = arguments[2] || "H-dialog",        contentId = arguments[3] || "msgCont";               lockScreen();        //屏幕实际高宽        var pageWidth = window.innerWidth;        var pageHeight = window.innerHeight;        if (typeof pageWidth != "number") {            if (document.compatMode == "CSS1Compat") {                pageWidth = document.documentElement.clientWidth;                pageHeight = document.documentElement.clientHeight;            } else {                pageWidth = document.body.clientWidth;                pageHeight = document.body.clientHeight;            }        }        //滚动条高宽        var scrollLeft = window.document.documentElement.scrollLeft;        var scrollTop = 0;        if (typeof window.pageYOffset != 'undefined') {            scrollTop = window.pageYOffset;        } else if (typeof window.document.compatMode != 'undefined' &&            window.document.compatMode != 'BackCompat') {            scrollTop = window.document.documentElement.scrollTop;        } else if (typeof window.document.body != 'undefined') {            scrollTop = window.document.body.scrollTop;        }        var div_X = (pageWidth - 400) / 2 + scrollLeft;        var div_Y = (pageHeight - 200) / 2 + scrollTop;        var objDiv = document.getElementById(popupId);        if (status) {            document.getElementById(contentId).style.background = "url($Root/Assets/Images/ui_success.png) no-repeat 20px 50%";        }        document.getElementById(contentId).innerHTML = msg;        objDiv.style.display = "block";        objDiv.style.left = div_X + "px";        objDiv.style.top = div_Y + "px";        autoClose(popupId);    }</script>