/*********************
* Navigation buttons *
*********************/
$(document).ready(function() {
  // Add the mouseover handlers for the navigation buttons
  $(".buttonlist .button").each(function(index) {
    $(this).mouseenter(function() { $(this).addClass("hover"); });
    $(this).mouseleave(function() { $(this).removeClass("hover"); });
  });
  preload('buttonhover.gif');

  //Hide/show buttons as required
  if (canAccessPlayback) { $('#playButton').show(); }
  if (canAccessAutomation) { $('#ioButton').show(); }
  if (canAccessPlans) { $('#planButton').show(); }
});



/******************
* Image preloader *
******************/
var preload_i = null;
var preload_n = 0;

function preload(preload_image) {
  if (preload_i == null) {preload_i = new Array(); }
  preload_i[preload_n] = new Image();
  preload_i[preload_n].src = '/images/'+preload_image;

  preload_n++;
}