After Adding Elements To Page - How To Remove All

The following code adds an element to a page when a new address is inputted. Is there a way to remove all added elements with a Clear All button? I have a "Clear All" button with id="ClearAddresses" but I don't know how to remove all created elements - the code here only removes one at a time, since the element is created when the "Search" button is clicked.

var Dom = {
get: function(el){
if (typeof el === 'string')
return document.getElementById(el);
else
return el;
},
add: function(el, dest){
var el = this.get(el);
var dest = this.get(dest);
dest.appendChild(el);
}, .....
setTimeout("add_visited_address();", 50);
}