$(document).ready(function(){
          
	//onmouseover="document.images['prostredniobr'].src='http://www.penzionveskale.cz/wp-content/themes/penzion/img/loket_video.jpg'"
	
  $('.zmensenina img').bind('mouseover', function() {         
    $(".prostredniobrazek a img").unwrap();
  });    
    
  $('.zmensenina img.video-loket').bind('mouseover', function() {    
    $('.prostredniobrazek img').attr("src","http://www.penzionveskale.cz/wp-content/themes/penzion/img/loket_video.jpg");  
    $(".prostredniobrazek img").wrap('<a href="http://www.youtube.com/watch?v=l9YsD5b-TfY" target="_blank"></a>');
  });	
    
  
  
});