var sw2=0;

function updateSound(song) {
document.getElementById("reproductor").innerHTML = "<object type='application/x-shockwave-flash' data='emff_old.swf' width='0' height='0' ><param name='movie' value='emff_old.swf'/><param name='quality' value='high' /><param name='bgcolor' value='#ffffff' /><param name='FlashVars' value='src=mp3/"+song+"&amp;autoload=yes&amp;autostart=yes&amp;shortcuts=yes'></object>";
}

function tecla (e)
{
	var evt = e ? e : event;
    var key = window.Event ? evt.which : evt.keyCode;
    if(key ==13){
	  if(sw2 == 0){
		  
	  	updateSound("sumario.mp3");
		sw2=1;
	  }else{
		updateSound("");
		sw2=0;  
	  }
	}
}