//rollover
	jQuery(document).ready(function(){
	$(".alpha ").hover(
	  function(){$(this).children("img").animate({opacity:0.5},200);},
	  function(){$(this).children("img").animate({opacity:1},100);}
	);
	$(".opac ").hover(
	  function(){$(this).animate({opacity:0.5},200);},
	  function(){$(this).animate({opacity:1},100);}
	);
	$(".disable ").css("opacity",0.5);
	});