// ShowHide
function hideAll() {
document.getElementById("m1").style.display = 'none';
document.getElementById("m2").style.display = 'none';
document.getElementById("m3").style.display = 'none';
}
function showhide(id){ 
	if (document.getElementById){ 
		obj = document.getElementById(id); 
		if (obj.style.display == "none"){ 
		hideAll();
		obj.style.display = ""; 
		} else { 
		obj.style.display = "none"; 
		} 
	} 
}