function toggelNavImage(id, mode) {
	switch (mode) {
	case 1: dojo.style(id, 'visibility', 'visible');				
			break;
	case 2: dojo.style(id, 'visibility', 'hidden');			
	}
}

function toggelNavImageEn(id, mode) {
	switch (mode) {
		case 0: dojo.byId(id).src=navUrls['en']['active'][id];				
				break;
		case 1: dojo.byId(id).src=navUrls['en']['noactive'][id];			
   	}
}