html - how i can do featured post slider set category based? -

my featured post slider set tags. want set category base. how can it?my site http://techgajot.com featured post slider html code?

<script type="text/javascript"> //<![cdata[     jquery(window).load(function() {         jquery('#featured').flexslider({             slideshowspeed: 6000,             directionnav:false,             pauseonhover:true,             manualcontrols: '.flexslide-custom-controls li a',             controlscontainer: '.container'         });      }); //]]> </script>  <div class="featured">      <div class="container">          <div id="featured" class="flexslider">              <ul class="slides">  <?php  $count = 1; $featurecount = get_option('solostream_features_number');  $my_query = new wp_query("tag=featured&showposts=$featurecount"); while ($my_query->have_posts()) : $my_query->the_post(); $do_not_duplicate[] = $post->id; ?>                      <li id="narrow-feature-post-<?php echo $count; ?>"<?php echo solostream_featureclass(); ?>>                      <div class="slide-container clearfix">                          <?php if ( get_post_meta( $post->id, 'video_embed', true ) ) { ?>                             <div class="feature-video">                                 <div class="video"><?php echo get_post_meta( $post->id, 'video_embed', true ); ?></div>                             </div>                         <?php } else { ?>                             <div class="feature-image">                                  <a href="<?php the_permalink() ?>" rel="<?php _e("bookmark", "solostream"); ?>" title="<?php _e("permanent link to", "solostream"); ?> <?php the_title(); ?>"><?php solostream_feature_image(); ?></a>                             </div>                         <?php } ?>                              <div class="flex-caption">                             <div class="excerpt">                                 <h2 class="post-title"><a href="<?php the_permalink() ?>" rel="nofollow" title="<?php _e("permanent link to", "solostream"); ?> <?php the_title(); ?>"><?php the_title(); ?></a></h2>                                 <?php if ( 'post' == get_post_type() ) { ?>                                     <?php include (templatepath . "/postinfo.php"); ?>                                 <?php } ?>                                 <?php the_excerpt(); ?>                                 <p class="readmore"><a class="more-link" href="<?php the_permalink() ?>" rel="nofollow" title="<?php _e("permanent link to", "solostream"); ?> <?php the_title(); ?>"><?php _e("সম্পূর্ন অংশ", "solostream"); ?></a></p>                             </div>                         </div>                      </div>                  </li>  <?php $count = $count + 1 ?> <?php endwhile; ?>              </ul>           </div>          <div class="controls-container clearfix">              <ul class="flexslide-custom-controls clearfix">  <?php  $count = 1; $featurecount = get_option('solostream_features_number');  $my_query = new wp_query("tag=featured&showposts=$featurecount"); while ($my_query->have_posts()) : $my_query->the_post(); $do_not_duplicate[] = $post->id; ?>                  <li><a href="#" title="<?php the_title(); ?>"><?php echo $count; ?></a></li>  <?php $count = $count + 1 ?> <?php endwhile; ?>              </ul>          </div>      </div>  </div> 

how can it. featured post slider tags now= featured. when put "featured" post tags option show featured post. want category base. select here category.then category post show featured post.

if understood right ( difficult ike @dda noted ) changing line :

$my_query = new wp_query("tag=featured&showposts=$featurecount"); 

to

$my_query = new wp_query("category_name=featured&showposts=$featurecount"); 

will make same query tag category using name ..

if use id ,

$query = new wp_query( 'cat=2,7,23,35' ); 

or posts share category :

$query = new wp_query( 'category_name=staff' ); 

read more here on codex