title: What variable is changing?
body: <p>Please tell me what variable is changing on the loop so I can maybe create a if else statement. I'm not a developer so, I really need help. Here's the code</p>
  
  <pre><code>$(document).ready(function(){
  
  $("#health").show();
  $("#health").hide();
  $("#billing").hide();
  
  var arr = [
      $("#pension"),
      $("#health"),
      $("#billing")
  ];
  var cur = 0, nxt = 1;
  
  function looptour(ncur){
  if(ncur!=undefined) {
      arr[cur].hide();
      arr[ncur].show();
      cur = ncur;
      nxt = (cur + 1 &lt; arr.length) ? cur + 1 : 0;
  }
  else {
  setInterval(function() {
      arr[cur].fadeOut(2000);
      arr[nxt].fadeIn(2000);
      cur = (cur + 1 &lt; arr.length) ? cur + 1 : 0;
      nxt = (nxt + 1 &lt; arr.length) ? nxt + 1 : 0;
  },6000);
  }
  }
  looptour();
  </code></pre>
  
  <p>This is what I wanted to do... I just don't know the variable to use.
  Here's the idea, I have 3 buttons "1 2 3" I just want to add a class to those individual buttons
  1 is for pension
  2 is for health
  3 is for billing</p>
  
  <p>Thank you!</p>
  
  <pre><code>if() {
  $("#tournums ul li:first a").addClass("num_active");
  } else if() { $("#tournums ul li:eq(1) a").addClass("num_active");
  } else if() { $("#tournums ul li:eq(2) a").addClass("num_active");
  }
  </code></pre>