function showMenu(its,idDown,idUp){
	document.getElementById(its).style.display='';
	document.getElementById(idUp).style.display='';
	document.getElementById(idDown).style.display="none";
}
function HideMenu(its,idDown,idUp){
	document.getElementById(its).style.display="none";
	document.getElementById(idUp).style.display="none";
	document.getElementById(idDown).style.display='';
}