javascript - jquery break loop onclick and continue -

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i'm working on simple gallery , want loop array once each time click button , continue upon clicking again.

my code looks this:

$(document).ready(function(){   var pack_img = [     'image1.jpg',     'image2.jpg',     'image3.jpg',     'image4.jpg',     'image5.jpg'   ];    $("#btn").click(function(){     for(var i=0; i<pack_img.length; i++) {        alert(pack_img[i]);        return false;      }     }) });

i've search breaking , continue looping, seems complicated me

any idea appreciated. :)

try : 

var _index = -1; $("#btn").click(function(){      if(_index < pack_img.length){          _index ++;     }else{          _index = 0;     }     alert(pack_img[_index ]); });

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