function initHelpers() {	
  if (document.getElementById('ctl00_content_radlSector')) {
		addEvent(document.getElementById('ctl00_content_radlSector'), 'click', toggleFtse, false);
  }
}
		
addEvent(window, 'load', initHelpers, false);

function toggleFtse(e) {	
  if (document.getElementById('ctl00_content_radlSector_2').checked) {
		document.getElementById('ftse').style.display = 'block';
	} else {
		document.getElementById('ftse').style.display = 'none';	
	}
}



// --------------------------------------------------------

function addEvent(elm, evType, fn, useCapture) {
	if (elm.addEventListener) {
		elm.addEventListener(evType, fn, useCapture);
		return true;
	} else if (elm.attachEvent) {
		var r = elm.attachEvent('on' + evType, fn);
		return r;
	} else {
		elm['on' + evType] = fn;
	}
}