function spaceFormat(obj, in_string )
    {
        in_string = in_string.split(' ').join("");
        my_int = 0;

        if ( in_string != "" )
        {
            my_int = parseInt ( in_string );
        }

        in_string = "" + my_int;

        var rgx = /(\d+)(\d{3})/;
        while ( rgx.test( in_string ) )
        {
            in_string = in_string.replace( rgx, '$1' + ' ' + '$2' );
        }

        

        if ( in_string == "0" || in_string == "NaN" )
        {
            obj.value = "";
        }
        else
        {
            obj.value = in_string;
        }
    };