function removeElement(remElementId, containerId) {
var container = document.getElementById(containerId);
var remElement = document.getElementById(remElementId);
if(container && remElement) {
container.removeChild(remElement);
}
}
function addAnswer(preId, containerId, numId) {
var container = document.getElementById(containerId);
var num = document.getElementById(numId);
var number = num.innerHTML;
num.innerHTML = (number + 1);
var newdiv = document.createElement('div');
newdiv.setAttribute('id', (preId + number) );
newdiv.innerHTML=' –';
container.appendChild(newdiv);
}