$(function() {
    slider.init();
    //return false;
});



 var slider = {
     num: -1,
     cur: 0,
     cr: [],
     al: null,
     at: 8 * 1000,
     ar: true,
     init: function() {
     if (!slider.data || !slider.data.length)
             return false;

         var d = slider.data;
         slider.num = d.length;
         var pos = Math.floor(Math.random() * 1); //slider.num);

         $('#' + d[pos].id).fadeIn();
         slider.text(d[pos].desc);
         slider.cur = pos;
         window.setTimeout('slider.auto();', slider.at);
     },
     auto: function() {
         if (!slider.ar)
             return false;

         var next = slider.cur + 1;
         if (next >= slider.num) next = 0;
         slider.slide(next);
     },

     slide: function(pos) {

         if (pos == -1) {
             pos = slider.cur - 1;
             if (pos < 0) pos = slider.num-1;
         }
         if (pos == -2) {
             pos = slider.cur + 1;
             if (pos >= slider.num) pos = 0;
         }


         if (pos < 0 || pos >= slider.num || pos == slider.cur)
             return;

         window.clearTimeout(slider.al);
         slider.al = window.setTimeout('slider.auto();', slider.at);

         var d = slider.data;
         for (var i = 0; i < slider.num; i++) {
             $('#' + d[i].id).hide();
         }
         $('#' + d[pos].id).fadeIn();

         slider.text(d[pos].desc);
         slider.learnBtn(d[pos].learn_bttn);
         slider.cur = pos;
     },
     text: function(message) {
         $('#slide-desc').html(message);
     },
     learnBtn:function(url) {
         $('#slider-button').attr("href",url);
       
     }

 };