$(function() {

    
    $('<a href="#"></a>').appendTo($(document.body)).css({
        width: '30px',
        height: '50px',
        position: 'absolute',
        zIndex: 1000,
        opacity: 0,
        left: parseInt(($('html').width() - 905)/2) + 905 + 115 + 'px',
        top: '525px',
        background: 'black'
    }).click(function(event) {
        event.preventDefault();
        $('#black').toggle();
        return false;
    });

    $('<div id="black"/>').appendTo($(document.body)).css({
        width: $(window.document).width()+'px',
        height: $(window.document).height()+'px',
        position: 'absolute',
        zIndex: 500,
        opacity: 0.7,
        display: 'none',
        background: 'black',
        left: 0,
        top: 0
    });

});