<!--
function changefeatures( sel_num )
{
	if (sel_num == 1)
	{
		
		document.getElementById('worldview_navigation').style.display='';
		
	}
	else
	{
		
		document.getElementById('worldview_navigation').style.display='none';
		
	}
	if (sel_num == 2)
	{
		
		document.getElementById('your_membership').style.display='';
		
	}
	else
	{
		
		document.getElementById('your_membership').style.display='none';
		
	}
	if (sel_num == 3)
	{
		
		document.getElementById('ordering_payment').style.display='';
		
	}
	else
	{	
		
		document.getElementById('ordering_payment').style.display='none';
		
	}
	if (sel_num == 4)
	{
		
		document.getElementById('security_privacy').style.display='';
				
	}
	else
	{
		
		document.getElementById('security_privacy').style.display='none';
		
	}
	
	
}

-->