$(function() {
// OPACITY OF BUTTON SET TO 50%
$(".rollover1").css("opacity","0.0");
		
// ON MOUSE OVER
$(".rollover1").hover(function () {
										  
// SET OPACITY TO 100%
$(this).stop().animate({
opacity: 0.9
}, "slow");
},
		
// ON MOUSE OUT
function () {
			
// SET OPACITY BACK TO 50%
$(this).stop().animate({
opacity: 0
}, "slow");
});
});