(function($) {
  $.extend($.fx.step,{
      backgroundPosition: function(fx) {
            if (fx.state === 0 && typeof fx.end == 'string') {
                var start = $.curCSS(fx.elem,'backgroundPosition');
                start = toArray(start);
                fx.start = [start[0],start[2]];
                var end = toArray(fx.end);
                fx.end = [end[0],end[2]];
                fx.unit = [end[1],end[3]];
      }
            var nowPosX = [];
            nowPosX[0] = ((fx.end[0] - fx.start[0]) * fx.pos) + fx.start[0] + fx.unit[0];
            nowPosX[1] = ((fx.end[1] - fx.start[1]) * fx.pos) + fx.start[1] + fx.unit[1];
            fx.elem.style.backgroundPosition = nowPosX[0]+' '+nowPosX[1];

           function toArray(strg){
               strg = strg.replace(/left|top/g,'0px');
               strg = strg.replace(/right|bottom/g,'100%');
               strg = strg.replace(/([0-9\.]+)(\s|\)|$)/g,"$1px$2");
               var res = strg.match(/(-?[0-9\.]+)(px|\%|em|pt)\s(-?[0-9\.]+)(px|\%|em|pt)/);
               return [parseFloat(res[1],10),res[2],parseFloat(res[3],10),res[4]];
           }
        }
  });
})(jQuery);


$(document).ready(function(){
  bgImageTotal=10;  
  $('#posts span.custom-news-header').each(function(index) { 
    randomNumber = Math.round(Math.random()*(bgImageTotal-1))+1;
      imgPath=('fileadmin/templates/images/headers/h6-zwart-185-'+randomNumber+'.png');
      $(this).css('background-image', ('url("'+imgPath+'")'));
  });
  
  
  // Jquery - Headers

  $(".post > span.subheader").stop().css({"opacity" : "1", "display":"block"});
  $(".post").hover(
    function() {$("span.subheader",this).stop().animate({"top": "20"}, "slow");},
    function() {$("span.subheader",this).stop().animate({"top": "-100"}, "slow");
  });


  // Background #menu ul li
  
  $("#menu ul li").not(".act").hover(
    function() {$(this).stop().animate({backgroundPosition: '0px 0px'}, 1000);},
    function() {$(this).stop().css({backgroundPosition: '-450px 0px'});
  });
  

  
});