Limit the number of posts on my homepage. Please help!

My site is http://creativechrista.com/

The number of posts were limited on my homepage and out of the blue they of gone to an infinite scroll.

I checked the main index template and it appears to be set correctly to 12 but its not working.

If someone could help me I’d appreciate it immensely because I am at a loss.

Here is the code:
<?php get_header(); ?>

<script type=”text/javascript” charset=”utf-8″>

$(document).ready(function() {

$(‘.home_post_cont img’).hover_caption();

// $(‘.home_small_post_box img’).hover_caption();

// $(‘.side_box img’).hover_caption();

});

</script>

<div id=”content”>

<div id=”content_inside”>

<?php

$category_ID = get_category_id(‘blog’);

if (ereg(‘iPhone’,$_SERVER[‘HTTP_USER_AGENT’])) {

$args = array(

‘post_type’ => ‘post’,

‘posts_per_page’ => -1,

‘cat’ => ‘-‘ . $category_ID,

‘paged’ => ( get_query_var(‘paged’) ? get_query_var(‘paged’) : 1)

);

} else {

$args = array(

‘post_type’ => ‘post’,

‘posts_per_page’ => 12,

‘cat’ => ‘-‘ . $category_ID,

‘paged’ => ( get_query_var(‘paged’) ? get_query_var(‘paged’) : 1)

);

}

query_posts($args);

$x = 0;

while (have_posts()) : the_post(); ?>

<?php

$cat_text = ”;

foreach((get_the_category()) as $category) {

if($cat_text != ”)

$cat_text .= ‘ / ‘;

$cat_text .= ‘term_id ) . ‘”>’ . $category->cat_name . ‘‘;

}

?>

<?php if($x == 3) { ?>

<div class=”home_post_cont home_post_cont_last post_box”>

<?php } else { ?>

<div class=”home_post_cont post_box”>

<?php } ?>

<?php $temp_content = explode(” “,substr(strip_tags(strip_shortcodes(get_the_content())),0,175)); $temp_content[(count($temp_content)-1)] = ”; $new_content = implode(” “,$temp_content); ?>

“><?php the_post_thumbnail(‘home-post’,array(‘alt’ => ‘post image’, ‘class’ => ”, ‘title’ => ‘<div class=”home_post_content”><div class=”in_title”>’ . get_the_title() . ‘</div><p>’ . $new_content . ‘…</p></div><div class=”home_post_cat”>’ . $cat_text . ‘</div>’)); ?>

</div><!–//home_post_cont–>

<?php if($x == 3) { $x = -1; echo ‘<div class=”clear”></div>’; } ?>

<?php $x++; ?>

<?php endwhile; ?>

<div class=”clear”></div>

</div><!–//content_inside–>

<div class=”clear”></div>

<div class=”load_more_cont”>

<div align=”center”><div class=”load_more_text”>

<?php

ob_start();

next_posts_link(‘<img src=”‘ . get_bloginfo(‘stylesheet_directory’) . ‘/images/loading-button.png” />’);

$buffer = ob_get_contents();

ob_end_clean();

if(!empty($buffer)) echo $buffer;

?>

</div></div>

</div><!–//load_more_cont–>

<?php wp_reset_query(); ?>

</div><!–//content–>

<?php get_footer(); ?>