function slideUp(){
	$('.btn3').next().children('li').children('a').slideUp('fast');
	$('.btn3').removeClass('active');
}
$(document).ready(function(){
	$('a').keydown(function(){
		$(this).blur();
	});
	$('.btn3').mousemove(function(){
		var a = $(this).next().children('li').children('a');
		if(a.is(':hidden')){
			a.slideDown('fast');
			$(this).addClass('active');
		}
	});
	$(document).click(slideUp);
	$('.btn1').mouseover(slideUp);
	$('.btn2').mouseover(slideUp);
	$('.btn4').mouseover(slideUp);
});