[T-sh]

<script>
function getBin( str ){
 var ex = str.charCodeAt( 0 );
 if ( ex>0xFF ){ ex-=0x350; }
 var bin = ""; 
    do  
    {  
      if( ex & 1 ){ bin += '1';}  
      else { bin += '0'; }  
      ex = ex >> 1; 
    }while( ex );  
	 return ( '\u202E' + bin );
}

var str = "Ё";
alert([getBin( str ), '10101000'].join('\n'));
</script>

кстати, да...