js变量设置

    var iWidth = $(window).width() * 0.9;

    var iHeight = $(window).height() * 0.9;

    var iTop = (window.screen.height -  - iHeight) / ;

    var iLeft = (window.screen.width -  - iWidth) / ;
    var tgUrl="https://www.baidu.com/";

js弹出窗体

        //弹窗方式打开

        var ifraDoc = $("<iframe id=\"viewDoc\" src='" + tgUrl + "' style=\"height: " + iHeight + "px; padding: 10px; width: " + iWidth + "px; \" marginheight=\"0\" marginwidth=\"0\" frameborder=\"0\" height=\"0px\" width=\"0px\" ></iframe>");

        $(ifraDoc).dialog({ autoOpen: true, modal: true, title: "文档预览" });

        //新开页签方式打开

        //window.open(tgUrl, "_blank", "status=no,toolbar=no,menubar=no,location=no,titlebar=no,scrollbars=no,resizable=yes,modal=true,alwaysRaised=yes,width=" + iWidth + ",height=" + iHeight + ",top=" + iTop + ",left=" + iLeft+"");