function showhide( id )
		{
			var object = document.getElementById( id );
			if ( object != null )
			{
				if ( object.className == "hide" )
				{
					object.className = "show";
				}
				else if ( object.className == "show" )
				{
					object.className = "hide";
				}
			}
		}
		function showelement( id )
		{
			var menuDiv = document.getElementById( "opcionesmenu" );
			var submenus = menuDiv.getElementsByTagName( "div" );
			
			for ( i = 0; i < submenus.length; i++ )
			{
				var object = document.getElementById( submenus.item( i ).id );
				if (object != null) 
				{
					if (object.id == id) 
					{
						object.className = "show";
					}
					else 
					{
						object.className = "hide";
					}
				}
			}
		}
		function showAndHide( idToShow, idToHide )
		{
			var toHide = document.getElementById( idToHide );
			var toShow = document.getElementById( idToShow );
			if ( toHide != null && toShow != null )
			{
				toHide.className = "hide";
				toShow.className = "contenido";
			}
		}
		function submitSearch( )
		{
			var form = document.getElementById( "formBusqueda" );
			var input = document.getElementById( "inputBusqueda" );
			if ( form != null && input != null )
			{
				document.location = "http://www.google.es/search?hl=es&q=" + input.value;
			}
		}
		function verdir( pagina, ancho, alto )
		{
 			var win = window.open('ia_'+pagina,'ventana','top=150,left=100,width='+ancho+',height='+
 			alto+',directories=no,location=no,menubar=no,resizable=no,scrollbars=no,status=no,toolbar=no');
		}