var content = "mdesc";
function showm(message){
	var El = document.getElementById(content);
	El.innerHTML = message;

	Element.hide(content); 
	new Effect.Appear(content, { duration: 0.5});
}

function clearm(){
	Effect.Appear(content, { duration: 0.3, to: 0.0 });
	Element.hide(content); 
}