function show(div)
{
if(div=='2005')
{
document.getElementById('2005').style.visibility = 'visible';
document.getElementById('2006').style.visibility = 'hidden';
document.getElementById('2007').style.visibility = 'hidden';
} 
	
else if(div=='2006')
{
document.getElementById('2006').style.visibility = 'visible';
document.getElementById('2005').style.visibility = 'hidden';
document.getElementById('2007').style.visibility = 'hidden';
}

else if(div=='2007')
{
document.getElementById('2007').style.visibility = 'visible';
document.getElementById('2006').style.visibility = 'hidden';
document.getElementById('2005').style.visibility = 'hidden';
document.getElementById('content').style.paddingBottom = '0px';	
}

}