<script type="text/javascript">
function addItem() {var myitem = document.getElementById("ItemToAdd").value;var mylistItems = document.getElementById("mylist");var newP = document.createElement("li");var textNode = document.createTextNode(myitem);newP.appendChild(textNode);document.getElementById("mylist").appendChild(newP);return false;
}
</script>
<form οnsubmit="return addItem()" action="#">
<span>Grocery Items:</span>
<input type="text" id="ItemToAdd" value="Milk" />
<input type="button" value="Add" οnclick="addItem()" />
</form>
<span>Grocery List:</span>
<ol id="mylist"></ol>