<!-- funcion para eventos de los botones

  if (document.images) {
               
	       
	    var volveroff = new Image()
               volveroff.src = "img/volveroff.gif"
               var volveron = new Image()
               volveron.src = "img/volveron.gif"

		var cerraroff = new Image()
               cerraroff.src = "img/cerraroff.gif"
               var cerraron = new Image()
               cerraron.src = "img/cerraron.gif"			   

		var adelanteoff = new Image()
                adelanteoff.src = "img/adelanteoff.gif"
                var adelanteon = new Image()
                adelanteon.src = "img/adelanteon.gif"
                
                
		var fondoindexoff = new Image()
                fondoindexoff.src = "img/fondoindexoff.gif"
                var fondoindexon = new Image()
                fondoindexon.src = "img/fondoindexon.gif"

		var boton2off = new Image()
                boton2off.src = "img/boton2off.gif"
                var boton2on = new Image()
                boton2on.src = "img/boton2on.gif"
                
        var boton3off = new Image()
                boton3off.src = "img/boton3off.gif"
                var boton3on = new Image()
                boton3on.src = "img/boton3on.gif"
                
        var boton4off = new Image()
                boton4off.src = "img/boton4off.gif"
                var boton4on = new Image()
                boton4on.src = "img/boton4on.gif"
                
        var boton5off = new Image()
                boton5off.src = "img/boton5off.gif"
                var boton5on = new Image()
                boton5on.src = "img/boton5on.gif"
        
        var boton6off = new Image()
                boton6off.src = "img/boton6off.gif"
                var boton6on = new Image()
                boton6on.src = "img/boton6on.gif"
        
        var boton7off = new Image()
                boton7off.src = "img/boton7off.gif"
                var boton7on = new Image()
                boton7on.src = "img/boton7on.gif"
        
        var boton8off = new Image()
                boton8off.src = "img/boton8off.gif"
                var boton8on = new Image()
                boton8on.src = "img/boton8on.gif"
        
        var boton9off = new Image()
                boton9off.src = "img/boton9off.gif"
                var boton9on = new Image()
                boton9on.src = "img/boton9on.gif"
        
    
					
	        
			}



                function inact(imgName) {
                if (document.images)
                  document[imgName].src = eval(imgName+'off.src')
                }

                function act(imgName) {
                if (document.images) 
                  document[imgName].src = eval(imgName+'on.src')
   		}

             

// -->