(function($) {
    $(document).ready(function() {     
        
        var navBarMap = "/images/menu/img_menu_bkg.png" ;
        var nav = '#menu-bar';
        $(nav).attr( { style:"background: transparent url( " + navBarMap + " ) no-repeat 0 0;" } );

        $('.nb0').hover(
            function(){ $(nav).attr( { style:"background: transparent url( " + navBarMap + " ) no-repeat 0 -63px;" } );   },
            function(){ $(nav).attr( { style:"background: transparent url( " + navBarMap + " ) no-repeat 0 0;" } );   }
        );


        $('.nb1').hover(
            function(){ $(nav).attr( { style:"background: transparent url( " + navBarMap + " ) no-repeat 0 -126px;" } );   },
            function(){ $(nav).attr( { style:"background: transparent url( " + navBarMap + " ) no-repeat 0 0;" } );   }
        );

        $('.nb2').hover(
            function(){ $(nav).attr( { style:"background: transparent url( " + navBarMap + " ) no-repeat 0 -189px;" } );   },
            function(){ $(nav).attr( { style:"background: transparent url( " + navBarMap + " ) no-repeat 0 0;" } );   }
        );

        $('.nb3').hover(
            function(){ $(nav).attr( { style:"background: transparent url( " + navBarMap + " ) no-repeat 0 -252px;" } );   },
            function(){ $(nav).attr( { style:"background: transparent url( " + navBarMap + " ) no-repeat 0 0;" } );   }
        );

        $('.nb4').hover(
            function(){ $(nav).attr( { style:"background: transparent url( " + navBarMap + " ) no-repeat 0 -315px;" } );   },
            function(){ $(nav).attr( { style:"background: transparent url( " + navBarMap + " ) no-repeat 0 0;" } );   }
        );

        $('.nb5').hover(
            function(){ $(nav).attr( { style:"background: transparent url( " + navBarMap + " ) no-repeat 0 -378px;" } );   },
            function(){ $(nav).attr( { style:"background: transparent url( " + navBarMap + " ) no-repeat 0 0;" } );   }
        );
        
        $('.nb6').hover(
            function(){ $(nav).attr( { style:"background: transparent url( " + navBarMap + " ) no-repeat 0 -441px;" } );   },
            function(){ $(nav).attr( { style:"background: transparent url( " + navBarMap + " ) no-repeat 0 0;" } );   }
        );                
       
     
    }); // end $
})(jQuery); // end function($)