function showDiv(div_id) {
	document.getElementById(div_id).style.visibility = 'visible';
	document.getElementById(div_id).style.display = 'block';
}

function hideDiv(div_id) {
	document.getElementById(div_id).style.display = 'none';
	document.getElementById(div_id).style.visibility = 'hidden';
}

function showHideDiv(div_id) {
	if (document.getElementById(div_id).style.visibility == 'visible') {
		hideDiv(div_id);
	}
	else {
		showDiv(div_id);
	}
}

function toggleMenuOn(div_id) {
	document.getElementById(div_id).style.color='#2153AA';
	document.getElementById(div_id).style.backgroundColor='#F1F6FE';
	if (document.getElementById(div_id+'_link')) {
		document.getElementById(div_id+'_link').style.color='#2153AA';
	}
}

function toggleMenuOff(div_id) {
	document.getElementById(div_id).style.color='#F1F6FE';
	document.getElementById(div_id).style.backgroundColor='#2153AA';
	if (document.getElementById(div_id+'_link')) {
		document.getElementById(div_id+'_link').style.color='#FFFFFF';
	}
}