function closeNavigationFrame() {
	var fra = window.top.document.getElementById('fraNavigation');
	fraSet = window.top.document.getElementById('fraMainSet');
	
	if (fraSet!=null) {
		fra.style.display = 'none';
		
		fraSet.cols = '0%, 100%';
		fraSet.frameBorder = '0';
	}
}

function openNavigationFrame() {
	var fra = window.top.document.getElementById('fraNavigation');
	fraSet = window.top.document.getElementById('fraMainSet');
	
	if (fraSet!=null) {
		fra.style.display = '';
		
		fraSet.cols = '20%, 80%';
		fraSet.frameBorder = '1';
	}	
}