function fullscreenon(){
	lcol = document.getElementById('leftwrap_world');
	lcol.style.display = 'none';
	
	graph = document.getElementById('bubble_container');
	graph.style.width = '100%';
	graph.style.height = '96%';
	
	fullscreennoff = document.getElementById('fullScreenBar');
	fullscreennoff.style.display = 'block';
	
	header = document.getElementById('header_world');
	header.style.display = 'none';
	
}

function fullscreenoff(){
	lcol = document.getElementById('leftwrap_world');
	lcol.style.display = 'block';
	
	graph = document.getElementById('bubble_container');
	graph.style.width = '70%';
	graph.style.height = '80%';
	
	fullscreennoff = document.getElementById('fullScreenBar');
	fullscreennoff.style.display = 'none';
	
	header = document.getElementById('header_world');
	header.style.display = 'block';
	
}