$(document).ready(function () {
	
	$(document.documentElement).keydown(function (event) {
	
	  if (event.keyCode == 71) {
	    $('.grid').css('display','block');
	  
	  } else if (event.keyCode == 37) {
	    $('.next span').css('display','block');
	    $('.next a').css('color','#000');
	    
	  } else if (event.keyCode == 39) {
	    $('.prev span').css('display','block');
	    $('.prev a').css('color','#000');
	  }
	
	});
	
	$(document.documentElement).keyup(function (event) {
	
	  if (event.keyCode == 71) {
	    $('.grid').css('display','none');
	  
	  } else if (event.keyCode == 37) {
		window.location.href = $('.next > a').attr("href");
		$('.next a').css('color','#bbb');
		
	} else if (event.keyCode == 39) {
		window.location.href = $('.prev > a').attr("href");
		$('.prev a').css('color','#bbb');
	}
	
	});

});