var visID = 1;

function prevTwit()
{
	if(visID > 1)
		visID--;
		
	document.getElementById('twit1').className = 'twit_message_hidden';
	document.getElementById('twit2').className = 'twit_message_hidden';
	document.getElementById('twit3').className = 'twit_message_hidden';
	document.getElementById('twit4').className = 'twit_message_hidden';
	document.getElementById('twit5').className = 'twit_message_hidden';
	document.getElementById('twit6').className = 'twit_message_hidden';
	document.getElementById('twit7').className = 'twit_message_hidden';
	document.getElementById('twit8').className = 'twit_message_hidden';
	document.getElementById('twit9').className = 'twit_message_hidden';
	document.getElementById('twit10').className = 'twit_message_hidden';
		
	if(visID == 1)
		document.getElementById('twit1').className = 'twit_message';
	else
	if(visID == 2)
		document.getElementById('twit2').className = 'twit_message';
	else
	if(visID == 3)
		document.getElementById('twit3').className = 'twit_message';
	else
	if(visID == 4)
		document.getElementById('twit4').className = 'twit_message';
	else
	if(visID == 5)
		document.getElementById('twit5').className = 'twit_message';
	else
	if(visID == 6)
		document.getElementById('twit6').className = 'twit_message';
	else
	if(visID == 7)
		document.getElementById('twit7').className = 'twit_message';
	else
	if(visID == 8)
		document.getElementById('twit8').className = 'twit_message';
	else
	if(visID == 9)
		document.getElementById('twit9').className = 'twit_message';
	else
	if(visID == 10)
		document.getElementById('twit10').className = 'twit_message';
}

function nextTwit()
{		
	if(visID < 10)
		visID++;
		
	document.getElementById('twit1').className = 'twit_message_hidden';
	document.getElementById('twit2').className = 'twit_message_hidden';
	document.getElementById('twit3').className = 'twit_message_hidden';
	document.getElementById('twit4').className = 'twit_message_hidden';
	document.getElementById('twit5').className = 'twit_message_hidden';
	document.getElementById('twit6').className = 'twit_message_hidden';
	document.getElementById('twit7').className = 'twit_message_hidden';
	document.getElementById('twit8').className = 'twit_message_hidden';
	document.getElementById('twit9').className = 'twit_message_hidden';
	document.getElementById('twit10').className = 'twit_message_hidden';
		
	if(visID == 1)
		document.getElementById('twit1').className = 'twit_message';
	else
	if(visID == 2)
		document.getElementById('twit2').className = 'twit_message';
	else
	if(visID == 3)
		document.getElementById('twit3').className = 'twit_message';
	else
	if(visID == 4)
		document.getElementById('twit4').className = 'twit_message';
	else
	if(visID == 5)
		document.getElementById('twit5').className = 'twit_message';
	else
	if(visID == 6)
		document.getElementById('twit6').className = 'twit_message';
	else
	if(visID == 7)
		document.getElementById('twit7').className = 'twit_message';
	else
	if(visID == 8)
		document.getElementById('twit8').className = 'twit_message';
	else
	if(visID == 9)
		document.getElementById('twit9').className = 'twit_message';
	else
	if(visID == 10)
		document.getElementById('twit10').className = 'twit_message';
}