$(function() {
    rel_array = new Array();
    $('.before-and-after').find('.ba-image').each(function() {
        if(jQuery.inArray($(this).attr('rel'), rel_array) == -1)
        {
            rel_array.push($(this).attr('rel'));
        }
    });

    for(rel in rel_array)
    {
        $('a[rel="' + rel_array[rel] + '"]').colorbox({
            transition:'none',
            width:'80%',
            height:'80%',
        });
    }
})