js获取url地址

 //获取当前网址，如： http://localhost:8083/uimcardprj/share/meun.jsp
        var curWwwPath = window.document.location.href;
        //获取主机地址之后的目录，如： uimcardprj/share/meun.jsp
        var pathName = window.document.location.pathname;
        var pos = curWwwPath.indexOf(pathName);
        //获取主机地址，如： http://localhost:8083
        var localhostPaht = curWwwPath.substring(0, pos);
        //获取带"/"的项目名，如：/uimcardprj
        var projectName = pathName.substring(0, pathName.substr(1).indexOf('/') + 1);
        var scripthead = localhostPaht + projectName;
        return scripthead;