loops - jQuery looping prev next -


i found this bit of code whist searching basic slider , near enough want loop once got last li, i.e if last li , next button clicked loop 1st , continue,

all appreciated , in advance.

$('.udtalelse').addclass("passiv"); ctrlkunder(0);  $('#prev').click(function() {     var index = getactive();     if (index == 0) return;     index--;     ctrlkunder(index); }) $('#next').click(function() {     var index = getactive();     if (index == $('.udtalelse').length - 1) return;     index++;     ctrlkunder(index); })  function ctrlkunder(ele) {     $('.udtalelse').removeclass("active").addclass("passiv");     $('.udtalelse').eq(ele).removeclass("passiv").addclass("active"); }  function getactive() {     var index;     $('.udtalelse').each(function(i) {         if ($(this).hasclass("active")) index = i;     })     return index; } 
<ul class="kunder">     <li><span class="udtalelse">indhold 1</span></li>     <li><span class="udtalelse">indhold 2</span></li>     <li><span class="udtalelse">indhold 3</span></li> </ul> <span class="kunderpagination">     <a href="#" id="prev">« previous</a> |     <a href="#" id="next">next »</a> </span>

your code can simplified this:

var = $('.udtalelse').addclass("passiv");  var = -1;  $('#prev').click(function() {     ctrlkunder( = !i ? all.length - 1 : --i ); }); $('#next').click(function() {     ctrlkunder( = ++i % all.length ); }).click();  function ctrlkunder(ele) {     all.removeclass("active").addclass("passiv");     all.eq(ele).removeclass("passiv").addclass("active"); }

also more efficient because .udtalelse elements cached.

example: http://jsfiddle.net/3z9uc/

edit: forgot update answer revision that's in fiddle. fixed.


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