function opus144rank(rowcol)
{
/*
	var row = Math.floor(rowcol / 10).toString();
	var col = (rowcol % 10).toString();
*/
	var sel = 0;

	for ( col = 1; col <= 7; col++ )
	{
		sel = 0;
		for ( row = 1; row <= 7; row++ )
			if ( document.getElementById(row.toString() + col.toString()).checked )
				sel = row;
		
		if ( sel > 0 )
		{
			for ( row = 1; row <= 7; row++ )
			{
				if ( row != sel )
				{
					document.getElementById(row.toString() + col.toString()).disabled = true;
					document.getElementById(row.toString() + col.toString()).checked = false;
				}
			}
		}
		else
		{
			for ( row = 1; row <= 7; row++ )
				document.getElementById(row.toString() + col.toString()).disabled = false;
		}
	}
}

function opus144reset()
{
	var eButton;
	
	for ( var col = 1; col <= 7; col++ )
		for ( var row = 1; row <= 7; row++ )
		{
			eButton = document.getElementById(row.toString() + col.toString());
			eButton.checked = false;
			eButton.disabled = false;
		}
	return false;
}