function enlarge(url){

var topPosition = $('body').scrollTop();

topPosition += 20;

$('<div id="bigimage" style="background:#ffffff; border:1px solid #257cc2; padding:10px 10px 3px; position:absolute; top:'+topPosition+'px; left:20px; color:#49a32f; text-align:center; font-weight:bold; font-family: verdana; cursor:pointer; z-index:15" onclick="closeImage()"><img src="'+url+'" alt="" border="0" /><br />Закрыть</div>').appendTo('body').animate({opacity:'show'},400);
}

function closeImage(){
$('#bigimage').animate({opacity:'hide'}, 400, 'easein', function(){$('#bigimage').remove()});
}