function GetDealers(){
  var zp=document.forms[0].textZip.value;
  var rng=document.forms[0].selectRange.value;
  //var wp='top=50,left=100,height=300,width=400,status=no,toolbar=no,menubar=no,location=no,scrollbars=yes,dependent=yes,modal=yes';
  //window.open('dealers.aspx?z='+zp+'&r='+rng,null,wp)
  window.location = 'dealers.aspx?z='+zp+'&r='+rng;
}