var url = "http://api.flickr.com/services/rest/?method=flickr.photos.search&api_key=2ca741df06d485434b03b80e748808ee&tags=&safe_search=1&per_page=50";
var src;
$.getJSON(url + "&format=json&jsoncallback=?", function(data)
{
    $.each(data.photos.photo, function(i,item)
    {
        var Thumbsrc = "http://farm"+ item.farm +".static.flickr.com/"+ item.server +"/"+ item.id +"_"+ item.secret +"_m.jpg";
        var Fullsrc = "http://farm"+ item.farm +".static.flickr.com/"+ item.server +"/"+ item.id +"_"+ item.secret +".jpg";        
        var photoString = "<li><a href='" + Fullsrc + "' class='lightbox'><img src='" + Thumbsrc + "'/></a></li>";
        $(photoString).appendTo(".localPhotos");
        if ( i == -1 ) return false;
    });
});
    $("a[rel^='lightbox']").prettyPhoto();