// JavaScript Document
function filtra(v_op,v_orden,v_ascdesc){
	
	 

  	var Index = document.getElementById("s_anos").selectedIndex;
	
  	v_anos = document.getElementById("s_anos").options[document.getElementById("s_anos").selectedIndex].value;
	v_meses = document.getElementById("s_meses").options[document.getElementById("s_meses").selectedIndex].value;
	v_sellos = document.getElementById("s_sellos").options[document.getElementById("s_sellos").selectedIndex].value;
	v_artistas = document.getElementById("s_artistas").options[document.getElementById("s_artistas").selectedIndex].value;

	document.location.href='index_dist.php?op='+v_op+'&op1='+v_meses+'&op2='+v_anos+'&op3='+v_sellos+'&op4='+v_artistas+'&op6='+v_orden+'&op7='+v_ascdesc;
	
	
	}