//獲取瀏覽器頁(yè)面可見(jiàn)高度和寬度var _PageHeight = document.documentElement.clientHeight,_PageWidth = document.documentElement.clientWidth;//計(jì)算loading框距離頂部和左部的距離（loading框的寬度為215px，高度為61px）var _LoadingTop = _PageHeight > 61 ? (_PageHeight - 61) / 2 : 0,_LoadingLeft = _PageWidth > 215 ? (_PageWidth - 215) / 2 : 0;//加載gif地址var Loadimagerul="/Content/LoadJs/Image/loading.gif";//在頁(yè)面未加載完畢之前顯示的loading Html自定義內(nèi)容var _LoadingHtml = '<div id="loadingDiv" style="position:absolute;left:0;width:100%;height:' + _PageHeight + 'px;top:0;background:#f3f8ff;opacity:1;filter:alpha(opacity=80);z-index:10000;"><div style="position: absolute; cursor1: wait; left: ' + _LoadingLeft + 'px; top:' + _LoadingTop + 'px; width:100px;; height: 57px; line-height: 57px; padding-left: 50px; padding-right: 5px; background: #fff url('+Loadimagerul+') no-repeat scroll 5px 12px; border: 2px solid #95B8E7; color: #696969; font-family:/'Microsoft YaHei/';">玩命加載中...</div></div>';//呈現(xiàn)loading效果document.write(_LoadingHtml);//監(jiān)聽(tīng)加載狀態(tài)改變document.onreadystatechange = completeLoading;//加載狀態(tài)為complete時(shí)移除loading效果function completeLoading() {if (document.readyState == "complete") {var loadingMask = document.getElementById('loadingDiv');loadingMask.parentNode.removeChild(loadingMask);}}

<script src="~/Content/LoadJs/base-loading.js"></script>