function show_tab(id)
{
	if(id=='orange')
	{
		document.getElementById('orange').style.display = 'block';
		//document.getElementById('orange_c').style.display = 'block';
		document.getElementById('purple').style.display = 'none';
		//document.getElementById('purple_c').style.display = 'none';

	}
	else
	{
		document.getElementById('purple').style.display = 'block';
		//document.getElementById('purple_c').style.display = 'block';
		document.getElementById('orange').style.display = 'none';	
		//document.getElementById('orange_c').style.display = 'none';	
	}
}