function show(num){
	for (i=1; i<=30; i++) {
		id = 'submenu' + i;
		id_link = id + '_link';
		if (i != num) {
			document.getElementById(id).style.display = 'none';
			//document.getElementById(id_link).style.color = '#3c3c3c';
		} else {
			document.getElementById(id).style.display = 'block';
			document.getElementById(id_link).style.color = '#F77F09';
		}
	}
}

function hide(num){
	id = 'submenu' + num;
	if (document.getElementById(id).style.display == 'block') document.getElementById(id).style.display = 'none'; else document.getElementById(id).style.display = 'block';
}

function show_only(num){
	for (i=1; i<=30; i++) {
		id = 'submenu' + i;
		id_link = id + '_link';
		if (i != num) {
			document.getElementById(id).style.display = 'none';
		} else {
			document.getElementById(id).style.display = 'block';
		}
	}
}

function add2Fav(x){
     if (document.all && !window.opera)
     {
          if (typeof window.external == "object")
          {
               window.external.AddFavorite(document.location, document.title);
               return true;
          }
          else return false;
     }
     else
     {
          x.href = document.location;
          x.title = document.title;
          x.rel = "sidebar";
          return true;
     }
}