function q() {
	var r = [];
	for ( var i = 0; i < arguments.length; i++ )
		r.push( document.getElementById( arguments[i] ) );
	return r;
}
Returns an array of elements with the given IDs, eg.
@example q("main", "foo", "bar")
@result [<div id="main">, <span id="foo">, <input id="bar">]