function ShowMenu(a,b) {
		var i;
        for (i = 1; i <= a; i++) {
            if (i == b) {
				document.getElementById("subnav" + i).style.display = "block";
				
            }
            else {
				document.getElementById("subnav" + i).style.display = "none";
				
            }
        }
    }
function hide(a,b) {
	var i;
    for (i = 1; i <= a; i++) {
		if(i == 1 ){
			document.getElementById("subnav1").style.display = 'block';
		}else{
			document.getElementById("subnav" + i).style.display = "none", 2000;
			};

	}}