<!--
function ChangeBackground(MyString)
{
  if (MyString == 'bg1') 
	{document.getElementById('bg1').style.visibility="visible";}
	else
	{document.getElementById('bg1').style.visibility="hidden";}
	
	if (MyString == 'bg2') 
	{document.getElementById('bg2').style.visibility="visible";}
	else
	{document.getElementById('bg2').style.visibility="hidden";}
	if (MyString == 'bg3')
	{document.getElementById('bg3').style.visibility="visible";}
	else
	{document.getElementById('bg3').style.visibility="hidden";}
	if (MyString == 'bg4')
	{document.getElementById('bg4').style.visibility="visible";}
	else
	{document.getElementById('bg4').style.visibility="hidden";}
	if (MyString == 'bg5')
	{document.getElementById('bg5').style.visibility="visible";}
	else
	{document.getElementById('bg5').style.visibility="hidden";}
	
}
//-->