function handleKey(key){
	if(!key){
		key = event.keyCode;
	}
	key = String.fromCharCode(key);
	if(key == 'h'){
		navLeft();
	}
	else if(key == 'l'){
		navRight();
	}
	else if(key == 'k'){
		navUp();
	}
	else if(key == 'j'){
		navDown();
	}
}

function navRight(){
	window.location.href = document.getElementById('nav-right').href;
}

function navLeft(){
	window.location.href = document.getElementById('nav-left').href;
}

function navUp(){
	window.location.href = document.getElementById('nav-up').href;
}
function navDown(){
	window.location.href = document.getElementById('nav-down').href;
}