view slideshow incorrect remembering the last slide

Question

this module is not remember the last slide correctly

i checked the cookie which set and tried to correct its value but still ignore the cookie

i see it depends on wrong computations how to fix it

note (i added

function hook_init() {
 $c=$_COOKIE['id'];
 $_COOKIE['gallery_slideshow-block']=end(str_split($c));
 drupal_add_js('
 jQuery(document).ready(function($){ 
 $("#' . $c . '").siblings().removeClass("active");
 $("#' . $c . '").addClass("activeme");
 alert("'.$c.'+'.$_COOKIE['gallery_slideshow-block'].'");
 $(".views-content-field-image").click(function(){
 var id=$(this).parent().parent().attr("id");
  document.cookie="id="+id+"; expires=Thu, 2 Aug 2013 20:47:11 UTC; path=/";
   location.reload(true)
  })
  })
  ', 'inline');

to refresh on click an remember last slide viewed with defined cookie

so why it doesn't read the cookie every time it loads the to find correct one

please help thanks in advance