jQuery(document).ready(
  function ($){
    $("#history-main-table").mouseleave(function(){
      var rand_src = $(this).attr("data-src");
      $("#history-main-img").attr("src",rand_src);
    });

    $("#history-main-table tr").mouseenter(function(){
      var tr_src = $(this).attr("data-src");
      $("#history-main-img").attr("src",tr_src);
    });

});