$(function() {
    $(".biogram_1").truncate( 360, {
        chars: /\s/,
        trail: [ " ( <a href='#' class='truncate_show'>czytaj dalej</a> ...)", " ( ... <a href='#' class='truncate_hide'>zwiń</a> )" ]
    });
    $(".example_2").truncate( 60 );
    $(".example_3").truncate( 120,{
        chars: /\s/,
        trail: [ " ( <a href='#' class='truncate_show'>more</a> . . . )", "( . . . <a href='#' class='truncate_hide'>less</a> )" ]
    });
    $(".example_4").truncate( 500,{
        chars: /\s/,
        trail: [ " ( <a href='#' class='truncate_show'>more</a> . . . )", "( . . . <a href='#' class='truncate_hide'>less</a> )" ]
    });
});