function showRed(){
	var subnav_red = document.getElementById('subnav_red');
	subnav_red.style.display = "inline";
}
function hideRed(){
	var subnav_red = document.getElementById('subnav_red');
	subnav_red.style.display = "none";
}
function showPurple(){
	var subnav_purple = document.getElementById('subnav_purple');
	subnav_purple.style.display = "inline";
	subnav_purple.style.marginLeft = "245px";
}
function hidePurple(){
	var subnav_purple = document.getElementById('subnav_purple');
	subnav_purple.style.display = "none";
	}
function showOrange(){
	var subnav_orange = document.getElementById('subnav_orange');
	subnav_orange.style.display = "inline";
	subnav_orange.style.marginLeft = "490px";
}
function hideOrange(){
	var subnav_orange = document.getElementById('subnav_orange');
	subnav_orange.style.display = "none";
	}