$(document).ready(function () {
 
        if($.support.pjax) {
              <%if(@shiro.getPrincipalProperty('loginPjax')){%>
            $(document).pjax('a[data-pjax]', '#container', {maxCacheLength:0,push:false, replace:true,fragment: '#container', timeout: 8000});
            <%}%>
            bindLeft();
            $('#topnav a[data-pjax]').on('click',function(){
                $.get("${base!}/platform/home/left?url="+$(this).attr("href"),function (data) {
                    $("#leftnav").html(data);
                    bindLeft();
                }, "html");
            });
            $.get("${base!}/platform/home/path?url="+window.location.href,function (data) {
                $("#leftnav").html(data);
                bindLeft();
            }, "html");
            <%if(@shiro.getPrincipalProperty('loginPjax')){%>
            $(document).on('pjax:send', function () { //pjax链接点击后显示加载动画；
                $(".gallery-loader").fadeIn();
            });
            $(document).on('pjax:complete', function () { //pjax链接加载完成后隐藏加载动画；
                setTimeout(function(){$(".gallery-loader").fadeOut()},250);
            });
            <%}%>
        }
 
        try {
            $(".gallery-loader").fadeOut();
        } catch (e) {
        }
        $('#homeDetail').on('hidden.bs.modal',function(){
            $(this).removeData("bs.modal");
        });
        $(".toggle-sidebar").click(function(){
            $(".o_img").toggleClass("o_hide");
        });
    });

@shiro.getPrincipalProperty('loginPjax')中的 loginPjax在哪里定义了？