function chooseMeOverLeft() {
	document.getElementById('image_overlay_l').style.visibility = "visible";
}
function chooseMeOutLeft() {
	document.getElementById('image_overlay_l').style.visibility = "hidden";
}

function chooseMeOverRight() {
	document.getElementById('image_overlay_r').style.visibility = "visible";
}
function chooseMeOutRight() {
	document.getElementById('image_overlay_r').style.visibility = "hidden";
}

function chooseMeOverWinner() {
	document.getElementById('image_overlay_w').style.visibility = "visible";
}
function chooseMeOutWinner() {
	document.getElementById('image_overlay_w').style.visibility = "hidden";
}

/* flag functions */

function openFlagLeft() {
	document.getElementById('flag_left').style.visibility = "visible";
}
function closeFlagLeft() {
	document.getElementById('flag_left').style.visibility = "hidden";
}

function openFlagRight() {
	document.getElementById('flag_right').style.visibility = "visible";
}
function closeFlagRight() {
	document.getElementById('flag_right').style.visibility = "hidden";
}