A)
if ( x < 10 )
if ( y > 10 )
document.writeln( "*****<br/>" );
else
document.writeln( "#####<br/>" );
document.writeln( "$$$$$<br/>" );
B)
if ( x < 10 )
{
if ( y > 10 )
document.writeln( "*****<br/>" );
}
else
{
document.writeln( "#####<br/>" );
document.writeln( "$$$$$<br/>" );
}