Assign a featured image to a category

I have a category at
http://fixmysite.us/gmpc/wordpress/?cat=7
If you notice, the featured image (the third wide one on the right in the header).
Is there a way I can assign it a featured image (like I can a page) cause right now, its random image and I want to make it a specific image.

Thanks…

Through use of custom field or check wordpress org, there may be some plugins.

ok, im pretty new with wordpress and want to understand the logic here.So the featured image is called by the header.php file, so I found the code that spits it out, and altered it to check for categories 5,6, and 7so am I on the right track
(heres the altered code in my header.php file


<?php
// Check if this is a post or page, if it has a thumbnail, and if it's a big one
if ( is_singular() && current_theme_supports( 'post-thumbnails' ) && has_post_thumbnail( $post->ID ) && ( /* $src, $width, $height */ $image =  wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'post-thumbnail' ) ) &&
$image[1] >= HEADER_IMAGE_WIDTH ) :
// Houston, we have a new header image!
echo get_the_post_thumbnail( $post->ID );
elseif ( get_header_image() ) : ?>
<img src="<?php header_image(); ?>" width="<?php echo HEADER_IMAGE_WIDTH; ?>" height="<?php echo HEADER_IMAGE_HEIGHT; ?>" alt="" />
<?php //check for category 5
elseif ( is_category( '5' ) ) : ?>
<img src="path/to/cat5_featuredimage.png" width="<?php echo HEADER_IMAGE_WIDTH; ?>" height="<?php echo HEADER_IMAGE_HEIGHT; ?>" alt="" />
<?php //check for category 6
elseif ( is_category( '6' ) ) : ?>
<img src="path/to/cat6_featuredimage.png" width="<?php echo HEADER_IMAGE_WIDTH; ?>" height="<?php echo HEADER_IMAGE_HEIGHT; ?>" alt="" />
<?php //check for category 7
elseif ( is_category( '7' ) ) : ?>
<img src="path/to/cat7_featuredimage.png" width="<?php echo HEADER_IMAGE_WIDTH; ?>" height="<?php echo HEADER_IMAGE_HEIGHT; ?>" alt="" />
<?php endif; ?>

Looks like it would do the trick. If not, try reordering the elseif’s like so (keep the most important stuff closer to the top of the if…else block):


<?php
// Check if this is a post or page, if it has a thumbnail, and if it's a big one
if ( is_category( '5' ) ) : ?>
<img src="path/to/cat5_featuredimage.png" width="<?php echo HEADER_IMAGE_WIDTH; ?>" height="<?php echo HEADER_IMAGE_HEIGHT; ?>" alt="" />
<?php //check for category 6
elseif ( is_category( '6' ) ) : ?>
<img src="path/to/cat6_featuredimage.png" width="<?php echo HEADER_IMAGE_WIDTH; ?>" height="<?php echo HEADER_IMAGE_HEIGHT; ?>" alt="" />
<?php //check for category 7
elseif ( is_category( '7' ) ) : ?>
<img src="path/to/cat7_featuredimage.png" width="<?php echo HEADER_IMAGE_WIDTH; ?>" height="<?php echo HEADER_IMAGE_HEIGHT; ?>" alt="" />
elseif ( is_singular() && current_theme_supports( 'post-thumbnails' ) && has_post_thumbnail( $post->ID ) && ( /* $src, $width, $height */ $image =  wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'post-thumbnail' ) ) && $image[1] >= HEADER_IMAGE_WIDTH ) :
// Houston, we have a new header image!
echo get_the_post_thumbnail( $post->ID );
elseif ( get_header_image() ) : ?>
<img src="<?php header_image(); ?>" width="<?php echo HEADER_IMAGE_WIDTH; ?>" height="<?php echo HEADER_IMAGE_HEIGHT; ?>" alt="" />
<?php //check for category 5
elseif
<?php endif; ?>

k, worked rearranging the if statements like you did…
Thank you…