var menu = new Array('wmp','caratteristiche','caratteristiche2','assistenza','demo','commenti','aziendePA','contattaci');
function show(elem){
for(i=0;i<8;i++){
  document.getElementById(menu[i]).style.display="none";
}
  document.getElementById(elem).style.display="block";
}

var menu_m = new Array('m_wmp','m_caratteristiche','m_caratteristiche2','m_assistenza','m_demo','m_commenti','m_aziendePA','m_contattaci');
function current(elem){
for(i=0;i<8;i++){
  document.getElementById(menu_m[i]).style.height="17px";
	document.getElementById(menu_m[i]).style.lineHeight="17px";
	document.getElementById(menu_m[i]).style.marginTop="4px";

}
  document.getElementById(elem).style.height="21px";
	document.getElementById(elem).style.lineHeight="21px";
	document.getElementById(elem).style.marginTop="0px";
	
}