addclass - jquery add numeric class to an element based on current class of another element -


i have following html

<ul id="tabs">     <li>1</li>     <li>2</li>     <li>etc...</li> </ul>

and following jquery function using append "buttons" traversing "up" or "down" list, while "showing" current item:

$('#tabs li').first().attr('class', 'current');  $('#tabs li').each(function(i) {     = + 1;  $(this).attr('id', 'tab-' + i);  if(i !== $('#tabs li').size()) {     $(this).append('<a class="tabpagination next floor-up" rel="tab-' + (i + 1) + '" href="/keyplate/' + (i + 1) + '">up</a>');     }     if(i !== 1) {         $(this).append('<a class="tabpagination next floor-down" rel="tab-' + (i - 1) + '" href="/keyplate/' + (i - 1) + '">down</a>');     }                 });              $('#tabs li[class!="current"]').hide();  $(document).on("click", "a.tabpagination", function(){     $('.current').removeattr('class');     $('#tabs li[class!="current"]').hide();         $('#' + $(this).attr('rel')).show();   });

i have div:

<div id="tower"></div>

what need add class #tower div, based on selected #tab item. example if on #tab li = 2, #tower div class="active_level_2". in other words, take value of 'current' #tab list item , use create "active_level_#".

thanks in advance!

you can attribute rel , split last number use active_level_ class. can pull $(this) variable since being used more once.

jsfiddle

$(document).on("click", "a.tabpagination", function(){     var tab = $(this);     $('.current').removeattr('class');     $('#tabs li[class!="current"]').hide();         $('#' + tab.attr('rel')).show();      (var = 1; <= 6; i++)         $('#tower').removeclass('active-level-' + i);     $('#tower').addclass('active_level_' + tab.attr('rel').split('-')[1]); });

tab.attr('rel').split('-')[1] tab's rel attribute, split string 2 @ - character using split() , second part return number want.


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