function showLibrary() {
        document.getElementById('divLibrary').style.display = 'block';
        document.getElementById('divEBooks').style.display = 'none';
        document.getElementById('divWishList').style.display = 'none';
        document.getElementById('divAudioBooks').style.display = 'none';
        document.getElementById('bookListNavLibrary').className = 'on';
        document.getElementById('bookListNavWishlist').className = '';
        document.getElementById('ucMyOsprey_bookListNavEBooks').className = '';
        document.getElementById('bookListNavWishlistRight').src = '../images/mn_off_right.png';
        document.getElementById('bookListNavLibraryLeft').src = '../images/mn_on_left_5.png';
        document.getElementById('bookListNavLibraryRight').src = '../images/mn_on_right_5.png';
        document.getElementById('ucMyOsprey_bookListNavEBooksRight').src = '../images/mn_off_right.png';
        document.getElementById('ucMyOsprey_bookListNavEBooksLeft').src = '../images/mn_off_left.png';
        document.getElementById('ucMyOsprey_bookListNavAudioBooksRight').src = '../images/mn_off_right.png';
        document.getElementById('ucMyOsprey_bookListNavAudioBooksLeft').src = '../images/mn_off_left.png';
        document.getElementById('ucMyOsprey_bookListNavAudioBooks').className = '';
        
    }
    function showWishlist() {
        
        document.getElementById('divLibrary').style.display = 'none';
        document.getElementById('divEBooks').style.display = 'none';
        document.getElementById('divAudioBooks').style.display = 'none';
        document.getElementById('divWishList').style.display = 'block';
        document.getElementById('bookListNavWishlist').className = 'on';
        document.getElementById('bookListNavLibrary').className = '';
        document.getElementById('ucMyOsprey_bookListNavEBooks').className = '';
        document.getElementById('bookListNavWishlistRight').src = '../images/mn_on_right_5.png';
        document.getElementById('bookListNavLibraryLeft').src = '../images/mn_off_left.png';
        document.getElementById('bookListNavLibraryRight').src = '../images/mn_off_right.png';
        document.getElementById('ucMyOsprey_bookListNavEBooksRight').src = '../images/mn_off_right.png';  
        document.getElementById('ucMyOsprey_bookListNavEBooksLeft').src = '../images/mn_off_left.png';
        document.getElementById('ucMyOsprey_bookListNavAudioBooksRight').src = '../images/mn_off_right.png';
        document.getElementById('ucMyOsprey_bookListNavAudioBooksLeft').src = '../images/mn_off_left.png';
        document.getElementById('ucMyOsprey_bookListNavAudioBooks').className = '';                               
                               
    }    
    function showEBooks() {
      
        document.getElementById('divLibrary').style.display = 'none';
        document.getElementById('divWishList').style.display = 'none';
        document.getElementById('divAudioBooks').style.display = 'none';
        document.getElementById('divEBooks').style.display = 'block';
       
        document.getElementById('bookListNavLibrary').className = '';
        document.getElementById('bookListNavWishlist').className = '';
        document.getElementById('ucMyOsprey_bookListNavEBooks').className = 'on';
               
        document.getElementById('bookListNavWishlistRight').src = '../images/mn_off_right.png';
        document.getElementById('bookListNavLibraryLeft').src = '../images/mn_off_left.png';
        document.getElementById('bookListNavLibraryRight').src = '../images/mn_off_right.png';
        document.getElementById('ucMyOsprey_bookListNavAudioBooksRight').src = '../images/mn_off_right.png';
        document.getElementById('ucMyOsprey_bookListNavAudioBooksLeft').src = '../images/mn_off_left.png';
        document.getElementById('ucMyOsprey_bookListNavAudioBooks').className = '';
        
        document.getElementById('ucMyOsprey_bookListNavEBooksRight').src = '../images/mn_on_right_5.png';  
        document.getElementById('ucMyOsprey_bookListNavEBooksLeft').src = '../images/mn_on_left_5.png';             
    }


    function showAudioBooks() {

        document.getElementById('divLibrary').style.display = 'none';
        document.getElementById('divWishList').style.display = 'none';
        document.getElementById('divEBooks').style.display = 'none';
        document.getElementById('divAudioBooks').style.display = 'block';

        document.getElementById('bookListNavLibrary').className = '';
        document.getElementById('bookListNavWishlist').className = '';
        document.getElementById('ucMyOsprey_bookListNavEBooks').className = '';
        document.getElementById('ucMyOsprey_bookListNavAudioBooks').className = 'on';
        

        document.getElementById('bookListNavWishlistRight').src = '../images/mn_off_right.png';
        document.getElementById('bookListNavLibraryLeft').src = '../images/mn_off_left.png';
        document.getElementById('bookListNavLibraryRight').src = '../images/mn_off_right.png';
        document.getElementById('ucMyOsprey_bookListNavEBooksRight').src = '../images/mn_off_right.png';
        document.getElementById('ucMyOsprey_bookListNavEBooksLeft').src = '../images/mn_off_left.png';


        document.getElementById('ucMyOsprey_bookListNavAudioBooksRight').src = '../images/mn_on_right_5.png';
        document.getElementById('ucMyOsprey_bookListNavAudioBooksLeft').src = '../images/mn_on_left_5.png';
        
        
        
    }