var mov; 
	var xpos=-800; 

	function VerOcultarMenu() { 
	if (mov==2) { mov=-2} else {mov=2}; 
	document.getElementById("MMenu").style.top=parseInt(document.getElementById("puntero").style.top)+30+"px"; 
	document.getElementById("MMenu").style.visibility="visible"; 
	MoverMenu() } 

	function MoverMenu(){ 
	xpos=xpos+10*mov; 
	if(xpos <- 800) {xpos=-800}; 
	if(xpos > 50) {xpos=50}; 
	document.getElementById("MMenu").style.left=xpos+"px"; 
	if (xpos <=-800 || xpos >=50) {window.clearTimeout() } else {window.setTimeout("MoverMenu();",25);} }