<!--

// function hideLevel
// hides an element by setting it's display property to none
// _levelId - the id of the element to hide, needs to be passed within quotes

function hide_level( _levelId) {
	var thisLevel = document.getElementById( _levelId ); 
	thisLevel.style.display = "none";
}

// function showLevel
// shows an element by setting it's display property to block
// _levelId - the id of the element to hide, needs to be passed within quotes

function show_level( _levelId) {
	var thisLevel = document.getElementById( _levelId );
	thisLevel.style.display = "block";
}
	

-->