function currency($icoin2, $icoin1, $value=1) {
	$coin1 = strtoupper($icoin1);
	$coin2 = strtoupper($icoin2);
	$coin1 = preg_replace("/[^A-Z{3}]/", null, $coin1);
	$coin2 = preg_replace("/[^A-Z{3}]/", null, $coin2);
	$currency = @file_get_contents('http://download.finance.yahoo.com/d/quotes.csv?s='.$coin2.$coin1.'=X&f=sl1d1t1ba&e=.csv');
	$currency = explode(",", $currency);
	$value = (float)($currency[1]*$value);
	return $value;
}