復制代碼 代碼如下:
function initialize() {
addcloud(); //為頁面添加遮罩
document.onreadystatechange = subSomething; //監聽加載狀態改變
}
function addcloud() {
var bodyWidth = document.documentElement.clientWidth;
var bodyHeight = Math.max(document.documentElement.clientHeight, document.body.scrollHeight);
var bgObj = document.createElement("div" );
bgObj.setAttribute( 'id', 'bgDiv' );
bgObj.style.position = "absolute";
bgObj.style.top = "0";
bgObj.style.background = "#000000";
bgObj.style.filter = "progid:DXImageTransform.Microsoft.Alpha(style=3,opacity=25,finishOpacity=75" ;
bgObj.style.opacity = "0.5";
bgObj.style.left = "0";
bgObj.style.width = bodyWidth + "px";
bgObj.style.height = bodyHeight + "px";
bgObj.style.zIndex = "10000"; //設置它的zindex屬性，讓這個div在z軸最大，用戶點擊頁面任何東西都不會有反應|
document.body.appendChild(bgObj); //添加遮罩
var loadingObj = document.createElement("div");
loadingObj.setAttribute( 'id', 'loadingDiv' );
loadingObj.style.position = "absolute";
loadingObj.style.top = bodyHeight / 2 - 32 + "px";
loadingObj.style.left = bodyWidth / 2 + "px";
loadingObj.style.background = "url(../img/loading.gif)" ;
loadingObj.style.width = "32px";
loadingObj.style.height = "32px";
loadingObj.style.zIndex = "10000";
document.body.appendChild(loadingObj); //添加loading動畫-
}
function removecloud() {
$( "#loadingDiv").remove();
$( "#bgDiv").remove();
}
function subSomething() {
if (document.readyState == "complete" ) //當頁面加載完畢移除頁面遮罩，移除loading動畫-
{
removecloud();
}
}