$(document).ready(function() {
  $(".popinfo").each(function () {

    var distance = 10;
    var time = 250;
    var hideDelay = 500;
    var center = -0;
    var right = -100;
    var top = 0;

    var hideDelayTimer = null;

    // tracker
    var beingShown = false;
    var shown = false;

    var trigger = $(".trigger", this);
    var popup = $(".popup", this).css("opacity", 0);

    // set the mouseover and mouseout on both element
    $([trigger.get(0), popup.get(0)]).mouseover(function () {
      // stops the hide event if we move from the trigger to the popup element
      if (hideDelayTimer) { clearTimeout(hideDelayTimer);}

      // don't trigger the animation again if we're being shown, or already visible
      if (beingShown || shown) {
        return;
      } else {

        beingShown = true;

        // reset position of popup box
        popup.css({
          center: -0,
          top: 0,
          right: -100,
          zIndex: 3000,
          display: "block" // brings the popup back in to view
        })

        // (we're using chaining on the popup) now animate it's opacity and position
        .animate({
          top: "-=" + distance + "px",
          opacity: 1
        }, time, "swing", function() {
          // once the animation is complete, set the tracker variables
          beingShown = false;
          shown = true;
        });

      }
    }).mouseout(function () {
      // reset the timer if we get fired again - avoids double animations
      if (hideDelayTimer) { clearTimeout(hideDelayTimer); }

      // store the timer so that it can be cleared in the mouseover if required
      hideDelayTimer = setTimeout(function () {
        hideDelayTimer = null;
        popup.animate({
          top: "-=" + distance + "px",
          opacity: 0
        }, time, "swing", function () {
          // once the animate is complete, set the tracker variables
          shown = false;
          // hide the popup entirely after the effect (opacity alone doesn't do the job)
          popup.css("display", "none");
          popup.css("zIndex", "0");
        });
      }, hideDelay);
    });
  });
});