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getElementById 在 wordpress 3.3.1 中未获取 id

发布于 2025-01-05 08:46:40 字数 7489 浏览 1 评论 0原文

我正在建立一个WordPress网站，二十一点主题。我希望小部件区域仅显示在特定页面上。

因此在 中添加了一个 javascript 函数，该函数由 调用

，因为 console.log(obj .id）将“text-2”写入控制台（这是正确的ID）。但是当我在此函数中将可见性设置为无时：

function show_collection_area(){
    if (document.location == "http://dutchmountaineer.com/wp/?page_id=116"){
        obj = document.getElementById('text-2');
        obj.style.visibility = 'visible';
        console.log(obj.id)
        console.log(obj);
    } else {
        document.getElementById("text-2").style.visibility = 'none';
    }
}

什么也没有发生。我尝试使用按钮从页面本身调用该函数，但结果是相同的。

我做错了什么？

多谢！

PS整个代码：

<?php
/**
 * The Header for our theme.
 *
 * Displays all of the <head> section and everything up till <div id="main">
 *
 * @package WordPress
 * @subpackage Twenty_Eleven
 * @since Twenty Eleven 1.0
 */
?><!DOCTYPE html>
<!--[if IE 6]>
<html id="ie6" <?php language_attributes(); ?>>
<![endif]-->
<!--[if IE 7]>
<html id="ie7" <?php language_attributes(); ?>>
<![endif]-->
<!--[if IE 8]>
<html id="ie8" <?php language_attributes(); ?>>
<![endif]-->
<!--[if !(IE 6) | !(IE 7) | !(IE 8)  ]><!-->
<html <?php language_attributes(); ?>>
<!--<![endif]-->
<head>
</head>

<meta charset="<?php bloginfo( 'charset' ); ?>" />
<meta name="viewport" content="width=device-width" />
<title><?php
    /*
     * Print the <title> tag based on what is being viewed.
     */
    global $page, $paged;

    wp_title( '|', true, 'right' );

    // Add the blog name.
    bloginfo( 'name' );

    // Add the blog description for the home/front page.
    $site_description = get_bloginfo( 'description', 'display' );
    if ( $site_description && ( is_home() || is_front_page() ) )
        echo " | $site_description";

    // Add a page number if necessary:
    if ( $paged >= 2 || $page >= 2 )
        echo ' | ' . sprintf( __( 'Page %s', 'twentyeleven' ), max( $paged, $page ) );

    ?></title>
<link rel="profile" href="http://gmpg.org/xfn/11" />
<link rel="stylesheet" type="text/css" media="all" href="<?php bloginfo( 'stylesheet_url' ); ?>" />
<link rel="pingback" href="<?php bloginfo( 'pingback_url' ); ?>" />
<!--[if lt IE 9]>
<script src="<?php echo get_template_directory_uri(); ?>/js/html5.js" type="text/javascript"></script>
<![endif]-->
<?php
    /* We add some JavaScript to pages with the comment form
     * to support sites with threaded comments (when in use).
     */
    if ( is_singular() && get_option( 'thread_comments' ) )
        wp_enqueue_script( 'comment-reply' );


    /* Always have wp_head() just before the closing </head>
     * tag of your theme, or you will break many plugins, which
     * generally use this hook to add elements to <head> such
     * as styles, scripts, and meta tags.
     */
    wp_head();
?>
<script type="text/javascript">
$(document).ready(function(){
  $("button").click(function(){
    $("button").hide();
  });
});

function show_collection_area(){
    if (document.location == "http://dutchmountaineer.com/wp/?page_id=116"){
        obj = document.getElementById('text-2');
        obj.style.visibility = 'visible';
        console.log(obj.id)
        console.log(obj);
    } else {
        document.getElementById("text-2").style.visibility = 'none';
    }
}

function display_gallery(id)
{   
    //first we set all displays to none
    document.getElementById(id).style.display = 'none';
}
</script>
</head>

<body onload = "show_collection_area()" <?php body_class(); ?>>
<div id="page" class="hfeed">
    <header id="branding" role="banner">
            <hgroup>
                <h1 id="site-title"><span><a href="<?php echo esc_url( home_url( '/' ) ); ?>" title="<?php echo esc_attr( get_bloginfo( 'name', 'display' ) ); ?>" rel="home"><?php bloginfo( 'name' ); ?></a></span></h1>
                <h2 id="site-description"><?php bloginfo( 'description' ); ?></h2>
            </hgroup>

            <?php
                // Check to see if the header image has been removed
                $header_image = get_header_image();
                if ( ! empty( $header_image ) ) :
            ?>
            <a href="<?php echo esc_url( home_url( '/' ) ); ?>">
                <?php
                    // The header image
                    // Check if this is a post or page, if it has a thumbnail, and if it's a big one
                    if ( is_singular() &&
                            has_post_thumbnail( $post->ID ) &&
                            ( /* $src, $width, $height */ $image = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), array( HEADER_IMAGE_WIDTH, HEADER_IMAGE_WIDTH ) ) ) &&
                            $image[1] >= HEADER_IMAGE_WIDTH ) :
                        // Houston, we have a new header image!
                        echo get_the_post_thumbnail( $post->ID, 'post-thumbnail' );
                    else : ?>
                    <img src="<?php header_image(); ?>" width="<?php echo HEADER_IMAGE_WIDTH; ?>" height="<?php echo HEADER_IMAGE_HEIGHT; ?>" alt="" />
                <?php endif; // end check for featured image or standard header ?>
            </a>
            <?php endif; // end check for removed header image ?>

            <?php
                // Has the text been hidden?
                if ( 'blank' == get_header_textcolor() ) :
            ?>
                <div class="only-search<?php if ( ! empty( $header_image ) ) : ?> with-image<?php endif; ?>">
                <?php get_search_form(); ?>
                </div>
            <?php
                else :
            ?>
                <?php get_search_form(); ?>
            <?php endif; ?>

            <nav id="access" role="navigation">
                <h3 class="assistive-text"><?php _e( 'Main menu', 'twentyeleven' ); ?></h3>
                <?php /*  Allow screen readers / text browsers to skip the navigation menu and get right to the good stuff. */ ?>
                <div class="skip-link"><a class="assistive-text" href="#content" title="<?php esc_attr_e( 'Skip to primary content', 'twentyeleven' ); ?>"><?php _e( 'Skip to primary content', 'twentyeleven' ); ?></a></div>
                <div class="skip-link"><a class="assistive-text" href="#secondary" title="<?php esc_attr_e( 'Skip to secondary content', 'twentyeleven' ); ?>"><?php _e( 'Skip to secondary content', 'twentyeleven' ); ?></a></div>
                <?php /* Our navigation menu.  If one isn't filled out, wp_nav_menu falls back to wp_page_menu. The menu assiged to the primary position is the one used. If none is assigned, the menu with the lowest ID is used. */ ?>
                <?php wp_nav_menu( array( 'theme_location' => 'primary' ) ); ?>
            </nav><!-- #access -->
    </header><!-- #branding -->


    <div id="main">
原文

i am building a wordpress site, twenty eleven theme. I want a widget area to be shown only on a certain page.

so added a javascript function to the <head> which is called by <body onload="show_collection_area">

The function called, since the console.log(obj.id) writes "text-2" to the console (which is the right id). But when i set visibilty to none in this function:

function show_collection_area(){
    if (document.location == "http://dutchmountaineer.com/wp/?page_id=116"){
        obj = document.getElementById('text-2');
        obj.style.visibility = 'visible';
        console.log(obj.id)
        console.log(obj);
    } else {
        document.getElementById("text-2").style.visibility = 'none';
    }
}

nothin happens. I tried calling the function from the page itself by using a button but the result is the same.

What am i doing wrong?

Thanks a lot!

PS the whole code:

<?php
/**
 * The Header for our theme.
 *
 * Displays all of the <head> section and everything up till <div id="main">
 *
 * @package WordPress
 * @subpackage Twenty_Eleven
 * @since Twenty Eleven 1.0
 */
?><!DOCTYPE html>
<!--[if IE 6]>
<html id="ie6" <?php language_attributes(); ?>>
<![endif]-->
<!--[if IE 7]>
<html id="ie7" <?php language_attributes(); ?>>
<![endif]-->
<!--[if IE 8]>
<html id="ie8" <?php language_attributes(); ?>>
<![endif]-->
<!--[if !(IE 6) | !(IE 7) | !(IE 8)  ]><!-->
<html <?php language_attributes(); ?>>
<!--<![endif]-->
<head>
</head>

<meta charset="<?php bloginfo( 'charset' ); ?>" />
<meta name="viewport" content="width=device-width" />
<title><?php
    /*
     * Print the <title> tag based on what is being viewed.
     */
    global $page, $paged;

    wp_title( '|', true, 'right' );

    // Add the blog name.
    bloginfo( 'name' );

    // Add the blog description for the home/front page.
    $site_description = get_bloginfo( 'description', 'display' );
    if ( $site_description && ( is_home() || is_front_page() ) )
        echo " | $site_description";

    // Add a page number if necessary:
    if ( $paged >= 2 || $page >= 2 )
        echo ' | ' . sprintf( __( 'Page %s', 'twentyeleven' ), max( $paged, $page ) );

    ?></title>
<link rel="profile" href="http://gmpg.org/xfn/11" />
<link rel="stylesheet" type="text/css" media="all" href="<?php bloginfo( 'stylesheet_url' ); ?>" />
<link rel="pingback" href="<?php bloginfo( 'pingback_url' ); ?>" />
<!--[if lt IE 9]>
<script src="<?php echo get_template_directory_uri(); ?>/js/html5.js" type="text/javascript"></script>
<![endif]-->
<?php
    /* We add some JavaScript to pages with the comment form
     * to support sites with threaded comments (when in use).
     */
    if ( is_singular() && get_option( 'thread_comments' ) )
        wp_enqueue_script( 'comment-reply' );


    /* Always have wp_head() just before the closing </head>
     * tag of your theme, or you will break many plugins, which
     * generally use this hook to add elements to <head> such
     * as styles, scripts, and meta tags.
     */
    wp_head();
?>
<script type="text/javascript">
$(document).ready(function(){
  $("button").click(function(){
    $("button").hide();
  });
});

function show_collection_area(){
    if (document.location == "http://dutchmountaineer.com/wp/?page_id=116"){
        obj = document.getElementById('text-2');
        obj.style.visibility = 'visible';
        console.log(obj.id)
        console.log(obj);
    } else {
        document.getElementById("text-2").style.visibility = 'none';
    }
}

function display_gallery(id)
{   
    //first we set all displays to none
    document.getElementById(id).style.display = 'none';
}
</script>
</head>

<body onload = "show_collection_area()" <?php body_class(); ?>>
<div id="page" class="hfeed">
    <header id="branding" role="banner">
            <hgroup>
                <h1 id="site-title"><span><a href="<?php echo esc_url( home_url( '/' ) ); ?>" title="<?php echo esc_attr( get_bloginfo( 'name', 'display' ) ); ?>" rel="home"><?php bloginfo( 'name' ); ?></a></span></h1>
                <h2 id="site-description"><?php bloginfo( 'description' ); ?></h2>
            </hgroup>

            <?php
                // Check to see if the header image has been removed
                $header_image = get_header_image();
                if ( ! empty( $header_image ) ) :
            ?>
            <a href="<?php echo esc_url( home_url( '/' ) ); ?>">
                <?php
                    // The header image
                    // Check if this is a post or page, if it has a thumbnail, and if it's a big one
                    if ( is_singular() &&
                            has_post_thumbnail( $post->ID ) &&
                            ( /* $src, $width, $height */ $image = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), array( HEADER_IMAGE_WIDTH, HEADER_IMAGE_WIDTH ) ) ) &&
                            $image[1] >= HEADER_IMAGE_WIDTH ) :
                        // Houston, we have a new header image!
                        echo get_the_post_thumbnail( $post->ID, 'post-thumbnail' );
                    else : ?>
                    <img src="<?php header_image(); ?>" width="<?php echo HEADER_IMAGE_WIDTH; ?>" height="<?php echo HEADER_IMAGE_HEIGHT; ?>" alt="" />
                <?php endif; // end check for featured image or standard header ?>
            </a>
            <?php endif; // end check for removed header image ?>

            <?php
                // Has the text been hidden?
                if ( 'blank' == get_header_textcolor() ) :
            ?>
                <div class="only-search<?php if ( ! empty( $header_image ) ) : ?> with-image<?php endif; ?>">
                <?php get_search_form(); ?>
                </div>
            <?php
                else :
            ?>
                <?php get_search_form(); ?>
            <?php endif; ?>

            <nav id="access" role="navigation">
                <h3 class="assistive-text"><?php _e( 'Main menu', 'twentyeleven' ); ?></h3>
                <?php /*  Allow screen readers / text browsers to skip the navigation menu and get right to the good stuff. */ ?>
                <div class="skip-link"><a class="assistive-text" href="#content" title="<?php esc_attr_e( 'Skip to primary content', 'twentyeleven' ); ?>"><?php _e( 'Skip to primary content', 'twentyeleven' ); ?></a></div>
                <div class="skip-link"><a class="assistive-text" href="#secondary" title="<?php esc_attr_e( 'Skip to secondary content', 'twentyeleven' ); ?>"><?php _e( 'Skip to secondary content', 'twentyeleven' ); ?></a></div>
                <?php /* Our navigation menu.  If one isn't filled out, wp_nav_menu falls back to wp_page_menu. The menu assiged to the primary position is the one used. If none is assigned, the menu with the lowest ID is used. */ ?>
                <?php wp_nav_menu( array( 'theme_location' => 'primary' ) ); ?>
            </nav><!-- #access -->
    </header><!-- #branding -->


    <div id="main">

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评论（1）

醉酒的小男人 2025-01-12 08:46:40

当您希望隐藏“可见性”的值时，应将其设置为“隐藏”。 “无”值适用于“显示”。

The value for "visibility" should be "hidden" when you want it to be hidden. The "none" value works for "display".

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