function showBackpack() {
	document.getElementById('backpack').style.visibility = "visible";
}
function hideBackpack() {
	document.getElementById('backpack').style.visibility = "hidden";
}

function showClimbing() {
	document.getElementById('climbing').style.visibility = "visible";
}
function hideClimbing() {
	document.getElementById('climbing').style.visibility = "hidden";
}

function showBiking() {
	document.getElementById('biking').style.visibility = "visible";
}
function hideBiking() {
	document.getElementById('biking').style.visibility = "hidden";
}

function showWater() {
	document.getElementById('water').style.visibility = "visible";
}
function hideWater() {
	document.getElementById('water').style.visibility = "hidden";
}

function showWinter() {
	document.getElementById('winter').style.visibility = "visible";
}
function hideWinter() {
	document.getElementById('winter').style.visibility = "hidden";
}