var last = false;

function activateSubMenu(what) {
	document.getElementById(what).className += ' on';
	
	$('#' + what).animate({
		marginTop: "0px",
		marginLeft: "190px",
		width: "730px",
		height: "381px",
		opacity: "1"
	}, 500 );
	
	if ( last != false ) {
		document.getElementById(last).style.display = 'none';
		document.getElementById(last).style.height='0px';
		document.getElementById(last).style.width='0px';
		document.getElementById(last).style.opacity='0';
		document.getElementById(last).style.marginLeft='-10px';
		document.getElementById(last).style.marginTop='320px';
	}
	
	last = what;
}