[destus]

<script src="http://code.jquery.com/jquery-1.11.1.js"></script>
	 <script>
         $(function () {
			$('ul#slider1>li>div.alt').each(function(i){
				$(this).html($('ul#slider1>li>img').eq(i).attr('alt'))
			})
			
         });
	</script> 
    <ul class="rslides" id="slider1">
		<li><img src="images/slider1.jpg" alt="Слад1"><div class="alt"></div></li>
		<li><img src="images/slider2.jpg" alt="Слад2"><div class="alt"></div></li>
		<li><img src="images/slider3.jpg" alt="Слад3"><div class="alt"></div></li>
	</ul>