lazyload

$(function() {
  $("#contentwrap img").lazyload({   
     placeholder : "http://www.woiweb.net/wp-content/themes/Expi/images/grey.gif", 
    effect: "fadeIn"
  });
});


$("img").lazyload({ 
    placeholder : "img/grey.gif",
    event : "click"
});




$(function() {          
    $("img:below-the-fold").lazyload({
        placeholder : "img/grey.gif", 
        event : "sporty"
    });
});
$(window).bind("load", function() { 
    var timeout = setTimeout(function() {$("img").trigger("sporty")}, 5000);
}); 