$("wrapper p").fadeInSequence();             //Elements will each fade in over a duration of 500ms with no pause between each element
$("wrapper p").fadeInSequence(1000);       //Elements will each fade in over a duration of 1000ms with no pause between each element
$("wrapper p").fadeInSequence(300, 500);  //Elements will each fade in over a duration of 300ms with a 500ms pause between each element