// Hide/show layer

function search_sector() {
	top.location.href = "http://www.healthcareevents.co.uk/conf/booking.php?action=search_sector&id=" + document.search_panel.sector.options[document.search_panel.sector.selectedIndex].value;
}

function search_speciality() {
	top.location.href = "http://www.healthcareevents.co.uk/conf/booking.php?action=search_speciality&id=" + document.search_panel.sector.options[document.search_panel.speciality.selectedIndex].value;
}

function search_loc() {
	top.location.href = "http://www.healthcareevents.co.uk/conf/booking.php?action=search_location&id=" + document.search_panel.loc.options[document.search_panel.loc.selectedIndex].value;
}


function toggle(object) {
  if (document.getElementById) {

    if (document.getElementById(object).style.display == 'none') {
      document.getElementById(object).style.display = '';
      document.getElementById(object + "_img").src = '/images/min.gif';
    } else {
      document.getElementById(object).style.display = 'none';
      document.getElementById(object + "_img").src = '/images/max.gif';
    }
  }

  else if (document.layers && document.layers[object] != null) {

    if (document.layers[object].display == 'none') {
      document.layers[object].display = '';
    } else {
      document.layers[object].display = 'none';
    }
  }

  else if (document.all) {

    if (document.all[object].style.display == 'none') {
      document.all[object].style.display = '';
    } else {
      document.all[object].style.display = 'none';
    }

  }

  return false;
}