php - Dynamic home page image in wordpress -

i'm building website friend of mine , i'm stuck on one. want adaptable background image on homepage can customize on customize page in wordpress admin page. code looks this:

get_header(); ?>  <div id="slides"> <div class="slides-container">      <img src="<?php bloginfo('template_directory'); ?>/images/home.jpg" alt="cinelli">  </div>  <nav class="slides-navigation">   <a href="#" class="next"> <img src="<?php bloginfo('template_directory'); ?>/images/right.png" alt="left"></a>   <a href="#" class="prev"> <img src="<?php bloginfo('template_directory'); ?>/images/left.png"alt="right"></a> </nav>  </div>    <div class="welcometext">     <h1><?php echo get_bloginfo( 'name' );?></h1>     <?php echo bloginfo('description');?>          </div>  <?php get_footer(); ?> 

now image tag needs adaptable. possible?

it may easier pull image wordpress page's featured image use customize page.

to enable featured images, add line theme's functions.php file: add_theme_support( 'post-thumbnails' );

now upload image featured image area of wordpress page. can page, need take note of page's id. page id, go edit screen page , @ url in browser. end post.php?post=34&action=edit number after post= page's id, in example it's 34.

now modify image code:

<?php $feat_image = wp_get_attachment_url( get_post_thumbnail_id(34, 'full') ); // replace '34' page's id ?> <img src="<?php echo $feat_image; ?>" alt="cinelli"> 

replace 34 page's id. if using code within loop, can replace 34 $post->id.

the 'full' in first line tells size of image use. 'full' use original image upload, or can use 'large', 'medium', 'thumbnail', or custom image size you've set up.