本文實例講述了js實現遮罩層彈出框的方法。分享給大家供大家參考。具體分析如下：
昨天公司網站需要彈窗提示一些信息,要我在把彈窗的js代碼和彈窗窗口html寫在一起哪裡需要就調用
不說那麼多了,直接上代碼,感覺肯定會有兼容問題,看到了請指出啊：
代碼如下:<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">內容</div>
</div>
<script type="text/javascript">
//鎖定背景屏幕
function lockScreen() {
var clientH = document.body.offsetHeight; //body高度
var clientW = document.body.offsetWidth; //body寬度
var docH = document.body.scrollHeight; //浏覽器高度
var docW = document.body.scrollWidth; //浏覽器寬度
var bgW = clientW > docW ? clientW : docW; //取有效寬
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);
}
//關閉按鈕事件
function popupClose(el) {
var blackBg = document.getElementById("blackBg");
blackBg && document.body.removeChild(blackBg);
el.parentNode.style.display = "none";
}
//自動關閉
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 : 彈窗信息
*參數1 : 提示信息內容
*參數2 : 提示信息狀態默認0 為提示信息,1為成功信息
*參數3 : 彈窗div的id,默認"H-dialog"
*參數4 : 彈窗內容的id,默認"msgCont"
**/
function showMsg(msg) {
msg = msg || "請重新操作";
var status = arguments[1] || 0,
popupId = arguments[2] || "H-dialog",
contentId = arguments[3] || "msgCont";
lockScreen();
//屏幕實際高寬
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;
}
}
//滾動條高寬
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>
希望本文所述對大家的javascript程序設計有所幫助。