function adjust_clear_form_href() {
    var href = $(this).attr("href");
    var options = $("#id_county option[selected='selected']");

    try{
        href += '?';
        for( i=0; i<options.length; i++) {
          href += ['county', options[i].value].join('=');
          if( i < options.length-1 ) {
	      href += '&';
          }
        }
    } catch(err) {
        console.log("error: "+err);
    }
    
    $(this).attr("href", href);
}

$(document).ready( function() {
    $('#clear-form-top').click( adjust_clear_form_href );
    $('#clear-form-bottom').click( adjust_clear_form_href );
});