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

                     <?php
                     if ( is_front_page() && is_home() ) {

Сюда вставляем блоки с проверкой
                       get_template_part( 'content', '' );
                     } elseif ( is_front_page() ) {
                       get_template_part( 'content', 'page' );
                     }
                     ?>

                  <?php endwhile; ?>

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

                       <?php get_template_part( 'content', 'archive' ); ?>

                   <?php endwhile; ?>

                                <?php $postcounter = 0; ?>

                   <?php while ( have_posts() ) : the_post();$postcounter++; ?>

                                <?php get_template_part( 'content', 'archive' ); ?>

                <?php if ( $postcounter == 1 ) : ?>
                <p align="center" style="padding:6px;clear:both"><?php dynamic_sidebar('ad-post1'); ?></p>
                <?php endif ?>

                <?php if ( $postcounter == 3 ) : ?>
                <p align="center" style="padding:6px;clear:both"><?php dynamic_sidebar('ad-post2'); ?></p>
                <?php endif ?>

                <?php if ( $postcounter == 6 ) : ?>
                <p align="center" style="padding:6px;clear:both"><?php dynamic_sidebar('ad-post3'); ?></p>
                <?php endif ?>

                   
                   <?php endwhile; ?>

var title = $(document).find("title").text(); //Заголовок текущей страницы
var head1 = $('h1.class').text();//h1
$('iframe#iframeID').load(function(){
  
  $(this).contents().find('div.mySomeClass1').text(title);
  $(this).contents().find('div.mysomeClass2').text(head1);

});

            <?php if ( is_single() ) : ?>
            <h1 class="entry-title"><?php the_title(); ?></h1>

                <div class="comments-link">
                    <?php comments_popup_link( '<span class="leave-reply">' . __( 'Leave a reply', 'twentytwelve' ) . '</span>', __( '1 Reply', 'twentytwelve' ), __( '% Replies', 'twentytwelve' ) ); ?>
                </div><!-- .comments-link -->

<?php the_content( __( 'Continue reading <span class="meta-nav">&rarr;</span>', 'twentytwelve' ) ); ?>

<?php if(in_category(5)): ?>
Выводим текст
<?php endif;?>

<?php if(in_category( array( 1,2,3,4,5,6))): ?>
Выводим текст
<?php endif;?>

$(document).ready(function(){
if($("#the_content h1, #the_content h2, #the_content h3, #the_content h4, #the_content h5").length){// <-проверка, есть ли h1-h5

$("#the_content p:first").after('<div id="table_of_contents"><div class="toc-title">Содержание</div><ul></ul></div>');
$("#the_content h1, #the_content h2, #the_content h3, #the_content h4, #the_content h5").each(function(i) {
    var current = $(this);
    current.attr("id", "title" + i);
    $("#table_of_contents ul").append("<li class='list-" + current.prop("tagName") + "'><a id='chapter" + i + "' href='#title" +
        i + "' title='" + current.prop("tagName") + "'>" +
        current.html() + "</a></li>");
});

}// Закрываем if

  });

{full-story}

<div id="the_content">{full-story}</div>
<script>
$(document).ready(function(){
$("#the_content p:first").after('<div id="table_of_contents"><div class="toc-title">Содержание</div><ul></ul></div>');
$("#the_content h1, #the_content h2, #the_content h3, #the_content h4, #the_content h5").each(function(i) {
    var current = $(this);
    current.attr("id", "title" + i);
    $("#table_of_contents ul").append("<li class='list-" + current.prop("tagName") + "'><a id='chapter" + i + "' href='#title" +
        i + "' title='" + current.prop("tagName") + "'>" +
        current.html() + "</a></li>");
});
  });
</script>

<div id="table_of_contents">
    <div class="toc-title">Содержание</div>
    <ul>
    </ul>
</div>
<div id="the_content">{full-story}</div>
<script>
$(document).ready(function(){
$("#the_content h1, #the_content h2, #the_content h3, #the_content h4, #the_content h5").each(function(i) {
    var current = $(this);
    current.attr("id", "title" + i);
    $("#table_of_contents ul").append("<li class='list-" + current.prop("tagName") + "'><a id='chapter" + i + "' href='#title" +
        i + "' title='" + current.prop("tagName") + "'>" +
        current.html() + "</a></li>");
});
  });
</script>

//jquery
$('a').click(function(){
    $('html, body').animate({
        scrollTop: $( $.attr(this, 'href') ).offset().top
    }, 500);
    return false;
});

.ipbtable {
    table-layout: fixed;
}
.ipbtable table {
    table-layout: fixed;
}

<script>
$(window).load(function(){

var some_w = $('.abc_search').width();
some_w = some_w - 156;
$('.postcolor img').css('max-width',some_w + 'px');

});
</script>

$cur_term_id = 'nothing';
$cur_term_id = $wp_query->get_queried_object_id();
if ($cur_term_id == $somevariable){do_something;}else{do_somethingelse;}

$(".menu li:contains('Пункт меню')").css('background-image','url(img/icon.png)');
$(".menu li:contains('Пункт меню2')").css('background-image','url(img/icon2.png)');
...