javascript - Limited jquery simple pagination that create by imtech_pager -

i want limit simple jquery pagination

now ---> 1 2 3 4 5 6 7 8 9 10

i whant convert ----> < 1 2 3... >

after click on 3 ---> < 2 3 4... >

i use imtech_pager pagination

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<!--in imtech_pager.js -->        var imtech = {};  imtech.pager = function() {      this.paragraphsperpage = 3;      this.currentpage = 1;      this.pagingcontrolscontainer = '#pagingcontrols';      this.pagingcontainerpath = '#content';        this.numpages = function() {          var numpages = 0;          if (this.paragraphs != null && this.paragraphsperpage != null) {              numpages = math.ceil(this.paragraphs.length / this.paragraphsperpage);          }            return numpages;      };        this.showpage = function(page) {          this.currentpage = page;          var html = '';            this.paragraphs.slice((page-1) * this.paragraphsperpage,              ((page-1)*this.paragraphsperpage) + this.paragraphsperpage).each(function() {              html += '<div>' + $(this).html() + '</div>';          });            $(this.pagingcontainerpath).html(html);            rendercontrols(this.pagingcontrolscontainer, this.currentpage, this.numpages());      }        var rendercontrols = function(container, currentpage, numpages) {          var pagingcontrols = 'page: <ul style="margin-left: -10px;">';          (var = 1; <= numpages; i++) {              if (i != currentpage) {                  pagingcontrols += '<li><a href="#" onclick="pager.showpage(' + + '); return false;">' + + '</a></li>';              } else {                  pagingcontrols += '<li>' + + '</li>';              }          }            pagingcontrols += '</ul>';            $(container).html(pagingcontrols);      }  }                  <!--for pagination -->  var pager = new imtech.pager();  $(document).ready(function() {      pager.paragraphsperpage =12; // set amount elements per page      pager.pagingcontainer = $('#content'); // set of main container      pager.paragraphs = $('div.z', pager.pagingcontainer); // set of required containers      pager.showpage(1);  });  <!-- jump script   -->  $(document).ready(function() {      $(".jumper").on("click", function( e ) {          e.preventdefault();          $("body, html").animate({              scrolltop: $( $(this).attr('href') ).offset().top          }, 600);      });  });

<div class="example">   <div id="content">  <div class="z">one</div>  <div class="z">tow</div>  .  .  .  <div class="z">three</div>    </div>  </div>    <div id="pagingcontrols"></div>

i whant convert < 1 2 3 ... >

after click on 3 --> < 2 3 4... >

please me

thanks