function changeLoc() {
  var f = window.document.modelSelectForm;
  var i;
  
  for(i=0; i<f.url.length; i++) {
    if(f.url[i].selected) {
      location.href = f.url[i].value;
    }
  }
}

function changeLoc2() {
  var f = window.document.procSelectForm;
  var i;
  
  for(i=0; i<f.url.length; i++) {
    if(f.url[i].selected) {
      location.href = f.url[i].value;
    }
  }
}