$(document).ready(function() {
  $('a.iframe').colorbox({iframe:true, innerWidth:515, innerHeight:290});
  
  $('.video-thumb').each(function() {
    $parent = $(this).parent('div');
    $parent.width();
    $parent.height();
    
    width = ($parent.width()/2)+25;
    height = ($parent.height()/2)-25;
    
    $(this).append('<img src="/_images/btn_play.png" class="btn-play">');
    
    $('.btn-play',this).css('margin-left','-'+width+'px');
    $('.btn-play',this).css('margin-top',height+'px');
    $('.video-thumb .btn-play').animate({opacity:0.5});
  });
    
  $('.video-thumb').hover(function() {
    $('.btn-play', this).stop().animate({opacity:1});
  },function() {
    $('.btn-play', this).stop().animate({opacity:0.5});    
  });
});