no, lo he probado y sigue sin responder :(
Código HTML:
<html>
<head>
<script src='//ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js' type='text/javascript'></script>
<script type="text/javascript">
$(document).ready(function(){
$("#botonocultamuestra").click(function () {
$("#divocultamuestra").each(function() {
displaying = $(this).css("display");
if(displaying == "block") {
$(this).fadeOut('slow',function() {
$(this).css("display","none");
});
} else {
$(this).fadeIn('slow',function() {
$(this).css("display","block");
});
}
});
});
});
</script>
</head>
<body>
<input type="button" class="botonpruebafade" id="n" value="Mostrar div" style="font-
size:14px;cursor:pointer;margin:15px;padding:5px;"/>
<div class="divquesemuestra" id="k" style="background:#000000;display:none;width:100px;height:100px;"></div>
</br></br>
<input type="button" class="botonpruebafade" id="s" value="Mostrar div" style="font-
size:14px;cursor:pointer;margin:15px;padding:5px;"/>
<div class="divquesemuestra" id="l" style="background:#000000;display:none;width:100px;height:100px;"></div>
</body>
</html>