cannabjs on "[Help ]Query with wp_pagenavi?"

full code

<?php get_header();?>
<div class="main-container col2-left-layout">
	<div class="main">
		<div class="breadcrumbs">
		<ul>
			<?php require_once('breadcrumb.php');?>
		</ul>
		</div>
		<div class="col-main">
					<div class="home-products" style="margin-top:15px;">
						<div class="block-title">
							<strong id="abc">
								<?php $term = get_term_by( 'slug', get_query_var( 'term' ), get_query_var( 'taxonomy' ) );?>
								<?php //echo get_the_term_list( $post->ID, 'nhom-hang');
								echo $term->name
								?>
							</strong>
						</div>
						<?php
							if(have_posts() ){
						?>
						<ul class="products-grid">
						<?php	

						$paged = get_query_var('paged') ? get_query_var('paged') : 1;
						//query_posts('post_type=san-pham&posts_per_page=8&paged='.$paged);
						query_posts(array(
							'post_type' 		=> 'san-pham',
							'posts_per_page'	=> 8,
							'paged'				=> $paged,
							'order'				=> 'DESC',

							)
						);
						?>
						<?php $i=1; while(have_posts()) : the_post(); ?>
						<?php if ($i==1)
							{echo ' <li class="item first">';}
							;?>
							<?php if ($i==2)
							{echo ' <li class="item">';}
							;?>
							<?php if ($i==3)
							{echo ' <li class="item last">';}
							;?>
							<?php if ($i==4)
							{echo ' <li class="item first">';}
							;?>
							<?php if ($i==5)
							{echo ' <li class="item">';}
							;?>
							<?php if ($i==6)
							{echo ' <li class="item last">';}
							;?>
							<?php if ($i==7)
							{echo ' <li class="item first">';}
							;?>
							<?php if ($i==8)
							{echo ' <li class="item">';}
							;?>
							<?php if ($i==9)
							{echo ' <li class="item last">';}
							;?>
								<div class="product-box">
									<a href="<?php the_permalink();?>" title="<?php the_title();?>" class="product-image">
										<img src="<?php echo get_post_meta($post->ID, 'image', true); ?>" width="204" height="204" alt="<?php the_title();?>">
									</a>
									<h3 class="product-name"><a href="<?php the_permalink();?>" title="<?php the_title();?>"><?php catchuoi_title(35); ?></a></h3>
								</div>
								<div class="clear"></div>
								<div class="price-box">
									<?php
									$discount = get_post_meta(get_the_id(), 'discount',true);
									$price = get_post_meta(get_the_id(), 'price',true);
									?>

									<?php if (!$discount) {?>
									<span class="regular-price" id="product-price-1-new">
										<span class="price"><?php echo get_post_meta($post->ID, 'price', true); ?></span>
									</span>
									<?php } ?>
									<span class="regular-price" id="product-price-1-new">
										<span class="price"><?php echo get_post_meta($post->ID, 'discount', true).'vnđ'; ?></span>
									</span>

								</div>
								<div class="clear"></div>
								<div class="actions">
									<?php
									if(function_exists('addCartButton')){
									addCartButton(get_the_id(),"Giỏ hàng");
									}
									?>
									<a class="button-view" href="<?php the_permalink();?>" title="View">Chi tiết</a>
								</div>
							</li>
							<?php $i++; endwhile ?>
						</ul>
						<?php } else{ ?>
						<h1>Chưa có sản phẩm!!!!!</h1>
						<?php } ?>
					</div>
					<div style="float:right; margin-top:20px;">
						<?php if (function_exists('wp_pagenavi')) {
						wp_pagenavi(); } ?>
					</div>

		</div>
		<?php get_sidebar('1');?>
    </div>
<?php get_footer();?>