function MM_preloadImages() 
{
  var d=document; 
  if(d.images)
  { 
  	if(!d.MM_p) 
	d.MM_p=new Array();
   
   	var i,j=d.MM_p.length,a=MM_preloadImages.arguments; 
	for(i=0; i<a.length; i++)
    	if (a[i].indexOf("#")!=0)
		{ 
		d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];
		}
  }
  
}

var ancho=window.screen.width;


function muestra(menu)
{
	
	document.getElementById(menu).className="menumorado2";
	document.getElementById(menu+"2").style.visibility="visible";
	document.getElementById(menu+"2").style.display="block";
	document.getElementById(menu+"1").style.visibility="hidden";
	document.getElementById(menu+"1").style.display="none";
	
}
function muestra2(menu)
{
	
	document.getElementById(menu).className="menumorado3";
	document.getElementById(menu+"2").style.visibility="visible";
	document.getElementById(menu+"2").style.display="block";
	document.getElementById(menu+"1").style.visibility="hidden";
	document.getElementById(menu+"1").style.display="none";
	
}
function nomuestra(menu)
{
	
	document.getElementById(menu).className="menumorado";
	document.getElementById(menu+"1").style.visibility="visible";
	document.getElementById(menu+"1").style.display="block";
	document.getElementById(menu+"2").style.visibility="hidden";
	document.getElementById(menu+"2").style.display="none";
	
}

function cambia(menu)
{
	document.getElementById(menu).src="_imagenes/"+menu+"_menu.png";
}
function cambia2(menu)
{
	document.getElementById(menu).src="_imagenes/"+menu+".png";
}
function cambia3(menu)
{
	document.getElementById(menu).src="_imagenes/"+menu+"_claro.png";
}