How to stop if-else statement loop in JavaScript -

i have code

// if there no data returned, there no more posts shown. show error if(data == "") {       $this.find('.loading-bar').html($settings.error);                     } else {      // offset increases     offset = offset+$settings.nop;       // append data content div     $this.find('#content_ins_con_all_posts').append(data);      // no longer busy!       busy = false; } 

this code displays me message when hit bottom , there no other posts show. problem when continue scrolling, message continue showing again , again multiple times... want show me message 1 time when posts ends. if there way in how can welcome.

(function($) {  $.fn.scrollpagination = function(options) {      var settings = {          nop     : 3, // number of posts per scroll loaded         offset  : 0, // initial offset, begins @ 0 in case         error   : 'no more posts!', // when user reaches end message                                     // displayed. can change if want.         delay   : 2000, // when scroll down posts load after delayed amount of time.                        // usability concerns. can alter see fit         scroll  : true // main bit, if set false posts not load user scrolls.                         // still load if user clicks.     }      // extend options work plugin     if(options) {         $.extend(settings, options);     }      // each keep chainability.     return this.each(function() {                 // variables          $this = $(this);         $settings = settings;         var offset = $settings.offset;         var busy = false; // checks if scroll action happening                            // don't run multiple times          // custom messages based on settings         if($settings.scroll == true) $initmessage = 'scroll more or click here';         else $initmessage = 'click more';          // append custom messages , ui         $this.append('<div id="content_ins_con_all_posts"></div><div class="loading-bar">'+$initmessage+'</div>');          function getdata() {              // post data ajax.php             $.post('functions_index_result_all_img.php', {                  action        : 'scrollpagination',                 number        : $settings.nop,                 offset        : offset,              }, function(data) {                  // change loading bar content (it may have been altered)                 $this.find('.loading-bar').html($initmessage);                  // if there no data returned, there no more posts shown. show error                  if(data == "") {                      $this.find('.loading-bar').html($settings.error);                                     }                  else {                       // offset increases                     offset = offset+$settings.nop;                       // append data content div                     $this.find('#content_ins_con_all_posts').append(data);                      // no longer busy!                       busy = false;                  }              });          }             getdata(); // run function          // if scrolling enabled         if($settings.scroll == true) {             // .. , user scrolling             $(window).scroll(function() {                  // check user @ bottom of element                 if($(window).scrolltop() + $(window).height() > $this.height() && !busy) {                      // working, busy true                     busy = true;                      // tell user we're loading posts                     $this.find('.loading-bar').html('loading posts');                      // run function fetch data inside delay                     // useful if have content in footer                     // want user see.                     settimeout(function() {                          getdata();                      }, $settings.delay);                  }                });         }          // content can loaded clicking loading bar/         $this.find('.loading-bar').click(function() {              if(busy == false) {                 busy = true;                 getdata();             }          });      }); }  })(jquery); 

two ways off top of head

1. check cursor is, if near range bottom not trigger code
2. store flag in sessionstorage or in variable (depending on code) mean showed message, remove flag once cursor moves away bottom past distance defined.