function GetMarketSummary()
{
	s('summary_loading').display='';
	s('summary_output').display='none';
	send_request('backend/get_market_summary.php',ShowMarketSummary);
}
function ShowMarketSummary(response)
{
	s('summary_loading').display='none';
	d('summary_output').innerHTML=response;
	s('summary_output').display='';
}