var menu = new Array('chi','congressi','lg','socio','forum','link');

function show(elem){

for(i=0;i<6;i++){

  document.getElementById(menu[i]).style.display="none";

}

  document.getElementById(elem).style.display="block";

}



var menu_m = new Array('m_chi','m_congressi','m_lg','m_socio','m_forum','m_link');

function current(elem){

for(i=0;i<6;i++){

  document.getElementById(menu_m[i]).style.height="31px";

  document.getElementById(menu_m[i]).style.width="75px";

	document.getElementById(menu_m[i]).style.lineHeight="31px";

	document.getElementById(menu_m[i]).style.marginTop="2px";

	

	

}

  document.getElementById(elem).style.height="31px";

  document.getElementById(elem).style.width="75px";

	document.getElementById(elem).style.lineHeight="31px";

	document.getElementById(elem).style.marginTop="2px";

	

}