var flag=new Array();
function Menu(menuName){
	if (!document.all) menuName = document.getElementById(menuName).style ;
	if (document.all) menuName = document.all(menuName).style ;
	if (menuName.display == 'none'){
		menuName.display = "block" ;
		return(1);
	}else{
		menuName.display = "none" ;
		return(0);
	}
		
}