var show = 0;

document.onmousedown=hideMenu;

function showMenu(m){
	var m1=""+m+"_1";
	hideMenu();
	document.getElementById(m).style.visibility="visible";
	show=1;
}

function hideMenu(){
	if(show==0){
		document.getElementById('menu1').style.visibility="hidden";
		document.getElementById('menu2').style.visibility="hidden";
		document.getElementById('menu3').style.visibility="hidden";
		document.getElementById('menu4').style.visibility="hidden";
		document.getElementById('menu5').style.visibility="hidden";
		document.getElementById('menu6').style.visibility="hidden";
		}
}

function outMenu(){
	show=0;
}

function overMenu(){
	show=1;
}