var select = new Element('select');
select.grab(new Element('option', {value: 'usd', selected: 'yes', text: 'usd',}));
select.grab(new Element('option', {value: 'usd',text: 'eur'}));
$('someContainer').grab(select);
var select = new Element('select');
select.grab(new Element('option', {value: 'usd', text: 'usd',}));
select.grab(new Element('option', {value: 'usd', selected: 'yes', text: 'eur'}));
$('header').grab(select);