function emision(){
     window.open("reproductor.php","Reproductos","toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizeable=0,width=400,height=250");
} 
function impresion(ida){
     window.open("impresion.php?id="+ida,"Reproductor","toolbar=0,location=0,directories=0,status=0,menubar=1,scrollbars=1,resizeable=0,width=400,height=600");
} 
function impresionop(ida){
     window.open("impresionop.php?id="+ida,"Reproductor","toolbar=0,location=0,directories=0,status=0,menubar=1,scrollbars=1,resizeable=0,width=400,height=600");
} 
function cambia(){
	if (document.all.enviaamigo.style.display=='none'){
		document.all.enviaamigo.style.display='block';
	}else{
		document.all.enviaamigo.style.display='none';
	}
	
}
function abrepago(id_dif){
	 alto=700;
	 ancho=800;
	 posy=(screen.height/2)-(alto/2);
	 posx=(screen.width/2)-(ancho/2);
     window.open("pago.php","newwindow","toolbar=0,location=0,left="+posx+",top="+posy+",directories=0,status=0,menubar=0,scrollbars=1,resizeable=0,width="+ancho+",height="+alto+"")
}