function hideObj(id) {
	if(obj = document.getElementById(id)) {
		obj.style.display = 'none';
	}
}
function showObj(id) {
	if(obj = document.getElementById(id)) {
		obj.style.display = 'block';
	}
}
function placeGimmick(id) {
	var xPos = Math.ceil(Math.random()*600)+200;
	var yPos = Math.ceil(Math.random()*400);
	if(obj = document.getElementById(id)) {
		obj.style.top = yPos+'px';
		obj.style.left = xPos+'px';
		showObj(id);
	}
}