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what is the jquery selector syntax to select this LI item

开发者 https://www.devze.com 2023-01-02 05:34 出处:网络
I need to select each list item and change the background image of the parent div homepagecontainer but I can\'t even select the li element in my script. Here is the code:

I need to select each list item and change the background image of the parent div homepagecontainer but I can't even select the li element in my script. Here is the code:

<div class="transparent" id="programmesbox">
<ul id="frontpage">
<?php 
query_posts('showposts=20&post_parent=7&post_type=page'); 

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

<li id="<?php the_id() ?>" ><a class="sprite" href="<?php the_permalink() ?>" title="<?php the_title(); ?>"><?php the_title(); ?></a></li>
<?php endwhile; endif; ?>

</ul>
</div>开发者_如何转开发

I need to do something like this

    <script type="text/javascript"
     src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
    <script type="text/javascript">
    $('#frontpage li a').hover(function() {
    alert('here');
//CHANGE BACKGROUND IMAGE OF 'homepage_container' to different image depending on which list item is hovered over
    }

    );


    </script>

This is the URL of the site:-

http://www.thebalancedbody.ca/

Thanks so much!!

Jonathan


Your script doesn't look wrong, but it looks like it is missplaced. Put it into jQuerys ready handler to make sure all elements you want to access are loaded.

$(document).ready(function(){
    $('#frontpage').find('a').hover(function() {
       $(this).closest('.homepage_container').css('background-image', 'some_image_url_here');
    }, function() {
       // mouseleave code here
    }); 
});

Out of your example, I couldn't figure out where the homepage_container is located relative to the anchor's, so I used the .closest() function for that. May get optimized by beeing more specific. If it is an ID you can just use $('#homepagecontainer').css('background-image', 'url'); since ID's have to be unique in valid HTML markups.


Looking at your source code, you have two seperate JS calls within the body, and also calling jQuery twice.

I would recommend putting your all your JS at the top or bottom of the page, with only ONE call to jQuery.

As for your li a selection, after you make these changes, try this,

<script type="text/javascript"> 
$(document).ready(function(){
  $("#contact").click(function(event){
     event.preventDefault(); //stops the browser from following the link

     $("#contactable").click(); //opens contact form
     alert("Showing mycontactform"); //remove this whenit's working
  });

  $("ul#frontpage li a").hover(
   function () {
     $('#homepage_container').css('background-image', 'url(image1.jpg)');
     },function () {
     $('#homepage_container').css('background-image', 'url(image2.jpg)');
     }
    );
});   
</script>
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