function popup(url, width, height)
{
	var winl = (screen.width - width) / 2;
	var wint = (screen.height - height) / 2;
	var features = 'width='+width+',height='+height+',toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,copyhistory=no,resizable=yes,left='+winl+',top='+wint+',screenX='+winl+',screenY='+wint+'';
	
	win = window.open(url, '', features);
	win.focus();
}

function more(id)
{
	var x = document.getElementById(id);
	var y = document.getElementById(id+'_link');
	
	if(x.style.display == 'none')
	{
		x.style.display = '';
		if(y)
		{
			y.style.color = 'red';
		}
	}
	else
	{
		x.style.display = 'none';
		if(y)
		{
			y.style.color = 'gray';
		}
	}
}