function oneIn() {
	document.getElementById("one").style.backgroundColor="#000000";
}
function twoIn() {
	document.getElementById("two").style.backgroundColor="#000000";
}
function threeIn() {
	document.getElementById("three").style.backgroundColor="#000000";
}
function fourIn() {
	document.getElementById("four").style.backgroundColor="#000000";
}
function fiveIn() {
	document.getElementById("five").style.backgroundColor="#000000";
}
function sixIn() {
	document.getElementById("six").style.backgroundColor="#000000";
}
function sevenIn() {
	document.getElementById("seven").style.backgroundColor="#000000";
}
function out() {
	document.getElementById("one").style.backgroundColor="transparent";
	document.getElementById("two").style.backgroundColor="transparent";
	document.getElementById("three").style.backgroundColor="transparent";
	document.getElementById("four").style.backgroundColor="transparent";
	document.getElementById("five").style.backgroundColor="transparent";
	document.getElementById("six").style.backgroundColor="transparent";
	document.getElementById("seven").style.backgroundColor="transparent";
}