$(window).load(function(){			   
//external link to new window			   
$('body a').filter(function() { 
    return this.hostname && this.hostname !== location.hostname; 
  }).addClass('external')
  .click(function() { 
    window.open(this.href); 
    return false; 
  });
 });
$(document).ready(function(){

 $('#selproducts,#selproducers,#selfilter').change( function(){ 
     
   $('[name=filters]').submit();
 });
    		
});