function showVideo(id)
{
    document.write('<object width="274" height="225">'
                 + '<param name="movie" value="http://www.youtube.com/v/' + id + '>&amp;hl=en&amp;fs=1"></param>'
                 + '<param name="allowFullScreen" value="true"></param>'
                 + '<param name="allowscriptaccess" value="always"></param>'
                 + '<embed src="http://www.youtube.com/v/' + id + '&amp;hl=en&amp;fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="274" height="225"></embed>'
                 + '</object>');
}

var pages = 0,
    page = 1,
    marginLeft = 0;

function previousPage()
{
    if (page > 1) {
        oldMargin = marginLeft;
        marginLeft = marginLeft + 839;
        jQuery('.container ul').animate({left:marginLeft + 'px'}, 1500);
        page--;
    } else {
        page = pages;
        marginLeft = 0 - ((pages - 1) * 930);
        oldMargin = 0 - ((pages - 2) * 930);
        jQuery('.container ul').animate({left:marginLeft + 'px'}, 2000);
    }
}

function nextPage()
{
    if (page < pages) {
        oldMargin = marginLeft;
        marginLeft = marginLeft - 839;
        jQuery('.container ul').animate({left:marginLeft + 'px'}, 1500);
        page++;
    } else {
        page = 1;
        marginLeft = 0;
        oldMargin = 0;
        jQuery('.container ul').animate({left:'0'}, 2000);
    }
}

jQuery(document).ready(function()
{

    jQuery('.half ul li:nth-child(even)').css({backgroundColor:'#e9e9e9'});

    photoCount = jQuery('.container ul li').size() - 1;
    pages = Math.ceil(photoCount / 3);

    jQuery('.prev').click(function()
    {
        previousPage();
        return false;
    });
    jQuery('.next').click(function()
    {
        nextPage();
        return false;
    });

});