function is_US()
{
    var host = location.host;
    var domain = host.split('.')[2]
    return domain=='us';
}
function checkDomain()
{
	//	if no us flag, we're outta here

	if(!is_US()) { return; }

	//	collect all the span tags, 
	//	cycle them looking for the 'usValue' attribute,
	//	if present, assign it's value to the span

	var spans = document.getElementsByTagName( 'span' );
	for(var i=0;i<spans.length;i++)
	{
		v = spans[i].getAttribute('usValue');
		if( !v ) continue;
		spans[i].childNodes.item(0).nodeValue=v;
	}
}