JQ獲取當前根目錄

function getRootPath_web() {
            //獲取當前網址，如： http://localhost:8083/uimcardprj/share/meun.jsp
            var curWwwPath = window.document.location.href;
            //獲取主機地址之后的目錄，如： uimcardprj/share/meun.jsp
            var pathName = window.document.location.pathname;
            var pos = curWwwPath.indexOf(pathName);
            //獲取主機地址，如： http://localhost:8083
            var localhostPaht = curWwwPath.substring(0, pos);
            //獲取帶"/"的項目名，如：/uimcardprj
            var projectName = pathName.substring(0, pathName.substr(1).indexOf('/') + 1);
            return (localhostPaht + projectName);
 }