function menu1_over(alias) {
	menu1_out();
    document.getElementById(alias).style.visibility = 'visible';
}

function menu1_out() {
	document.getElementById('news').style.visibility = 'hidden';
	document.getElementById('journal').style.visibility = 'hidden';
	document.getElementById('subscription').style.visibility = 'hidden';
	document.getElementById('services').style.visibility = 'hidden';			
	document.getElementById('club').style.visibility = 'hidden';			
	document.getElementById('exhibitions').style.visibility = 'hidden';			
	document.getElementById('partners').style.visibility = 'hidden';			
	document.getElementById('prices').style.visibility = 'hidden';							
}

function menu2_over(id) {eval("document.images['"+id+"'].src='/img/face/menu2_arrowr.gif'");}
function menu2_out(id) {eval("document.images['"+id+"'].src='/img/face/menu2_arrow.gif'");}

function lang_over(id) {eval("document.images['"+id+"'].src='/img/face/lang_"+id+"r.gif'");}
function lang_out(id) {eval("document.images['"+id+"'].src='/img/face/lang_"+id+".gif'");}