function menuActivate ( elementId, elementClass ) {
	document.getElementById( 'link-'+elementId ).className = 'link'	+elementId+' active';
	document.getElementById( 'menu-'+elementId ).className = 'link'+elementId+' active';
	if ( winter ) document.getElementById( 'menu-'+elementId+'-image' ).src = '/static/i/menu-'+elementId+'-act-winter.jpg';
	else document.getElementById( 'menu-'+elementId+'-image' ).src = '/static/i/menu-'+elementId+'-act.jpg'; 
}
function menuDeactivate ( elementId, elementState ) {
	if ( elementState == 'active' ) {
		elementClass = ' active';
		if ( winter ) elementImage = 'menu-'+elementId+'-act-winter.jpg'
		else elementImage = 'menu-'+elementId+'-act.jpg'
	} else {
		elementClass = '';
		if ( winter ) elementImage = 'menu-'+elementId+'-winter.jpg'
		else  elementImage = 'menu-'+elementId+'.jpg'
	}
	document.getElementById( 'link-'+elementId ).className = 'link'+elementId+elementClass;
	document.getElementById( 'menu-'+elementId ).className = 'link'+elementId+elementClass;
	document.getElementById( 'menu-'+elementId+'-image' ).src = '/static/i/'+elementImage; 
}