function sendRequest() {
	new Ajax.Request("submit.php", 
		{ 
		method: 'post', 
		postBody: 'player_name='+ $F('player_name')
			 +'&month='+ $F('month')
			 +'&day='+ $F('day')
			 +'&year='+ $F('year')
			 +'&emergency_contact='+ $F('emergency_contact')
			 +'&emergency_phone_number='+ $F('emergency_phone_number')
			 +'&position='+ $F('position')
			 +'&t_shirt_size='+ $F('t_shirt_size')
			 +'&session_a='+ $F('session_a')
			 +'&session_m='+ $F('session_m')
			 ,
		onComplete: showResponse 
		});
	}

function showResponse(req){

	// if no error, hide button
	if( !req.responseText.match(/^ERROR/)){
		//alert(req.responseText);
		$('form_submit').style.display = 'none';	// remove button
	}

	$('form_error').style.display = 'none';	// clear content
	$('form_error').innerHTML= req.responseText;
	Effect.Appear('form_error');	// fade-in content

}