function getObjectById(objectId) {
  if (document.getElementById && document.getElementById(objectId)) {
    return document.getElementById(objectId);
  } else if (document.all && document.all(objectId)) {
    return document.all(objectId);
  } else {
    return false;
  }
}

function enableQuestion(flag) {
	var q = getObjectById("question");
	var className = "";
	if(!flag) {
		className = "disabled";
		document.step1.external.value="";
		document.step1.external.disabled=true;
	}
	else {
		document.step1.external.disabled=false;
	}
	
	q.setAttribute("class", className); 
	q.setAttribute("className", className);  //IE
	return true;
}


function enableExternal(flag) {
	var q = getObjectById("question");
	var className = "";
	if(!flag) {
		className = "disabled";
		document.step1.external.disabled=true;
	}
	else {
		document.step1.external.disabled=false;
	}
	
	q.setAttribute("class", className); 
	q.setAttribute("className", className);  //IE
	return true;
}

function setQuestion() {
	if(document.step1.useExternal[1] && document.step1.useExternal[1].checked) {
		enableQuestion(true);
	}

}