I am creating a list that shows all the files in the server. The problem is that by each time that I push the “View Files” button that calls this function, it appends files to the list and shows duplicates. For example if I have 2 files on the server it shows 4 files. (first time shows 2 files that is correct but with each times I push button it duplicate).

1. 
   

2. function MyCallback(data) {

          

               var imagelist = data.imagelist;

               var jtext = "<table class='JsonGrid'><tr><th>ID</th><th>NAME</th></tr>";

    

               for (var i = 0; i < imagelist.length; i++) {

                    var id = imagelist[i].ID;

                   var name = imagelist[i].name;

                   var server_path = imagelist[i].server_path;

                   jtext = jtext + "<tr><td>" + id ;

                   jtext = jtext + "<td><a href=" + server_path + ">" + name + "</a></td>";

                   jtext = jtext + "</tr>";

                     $('#downlodedImage').append('<li>' + '<a href=' + server_path + '>' + name + '</a>');

               }

    

               jtext = jtext + "</table>";

    

               $("#jsontext").html(jtext);

           }