A quick assets file to give you control over header and footer templates with codeigniter. Not fully documented (yet) but should be relatively easy to figure out how to get access from your controller to tpl.view files.

Assets.php

<?php
if (!defined('BASEPATH')) exit('No direct script access allowed');

class Assets
{
   var $ci;
   var $siteTitle;
   var $siteJSPath;
   var $siteCSSPath;
   var $siteImgPath;
   var $siteSeperator;

    /**
     * Constructor
     *
     */
    public function __construct()
    {
        $this->ci =& get_instance();
        $this->ci->config->load('assets');
        $this->siteTitle = $this->ci->config->item('siteTitle');
        $this->siteJSPath = $this->ci->config->item('siteJSPath');
        $this->siteCSSPath = $this->ci->config->item('siteCSSPath');
        $this->siteImgPath = $this->ci->config->item('siteImgPath');
        $this->siteSeperator = $this->ci->config->item('siteSeperator');
    }

    /**
     * Add Script links to output array
     *
     * @access public
     * @global array  assetsScript
     * @param  string $position         Either 'head' or 'body'
     * @param  string $filename         filename
     * @param  string $type             Application type of script.  Default text/javascript.
     * @param  bool   $async            Defines if the script should be executed asynchronously or not
     * @param  bool   $defer            Indicates that the script is not going to generate any document content.
     * @return bool
     */
    function addScript($position, $filename, $type = false, $async = false, $defer = false)
    {
        if (empty($position) || empty($filename)) {
            // Fail silently Intentionally.  Could extend with PHP5 Exception.
            return false;
        }

        if (!isset($GLOBALS['assetsScript'])) {
            $GLOBALS['assetsScript'] = array('head'=>array(), 'body'=>array());
        }

        $GLOBALS['assetsScript'][$position][] = array('filename' => $filename,
                                                      'type'     => $type,
                                                      'async'    => $async,
                                                      'defer'    => $defer);
        return true;
    }

    /**
     * Add Script text to document head or body
     *
     * @access public
     * @global array  assetsScript
     * @param  string $script           script to be added
     * @param  string $position         Either 'head' or 'body'
     * @return bool
     */
    function addInlineScript($script, $position = 'head')
    {

        if (!isset($GLOBALS['assetsInlineScript'])) {
            $GLOBALS['assetsInlineScript'] = array('head'=>array(), 'body'=>array());
        }

        $GLOBALS['assetsInlineScript'][$position][] = array('script' => $script);
        return true;
    }

    function addJavascript($position, $path)
    {
    	return $this->addScript($position, $path);
    }


    /**
     * Add Link to output array
     *
     * @access public
     * @global array  assetsLink
     * @param  string $filename         filename
     * @param  string $media            Specifies on what device the document will be displayed.
     * @param  string $type             Specifies the MIME type of the target URL.
     * @param  string $rel              Specifies the relationship between the current document and the target URL.
     * @param  string $sizes            Defines sizes of the linked resource.
     * @param  string $hreflang         Defines the base language of the target URL.
     * @return bool
     */
    function addLink($filename, $media = false, $type = false, $rel = false, $sizes = false, $hreflang = false)
    {
        if (empty($filename)) {
            // Fail silently Intentionally.  Could extend with PHP5 Exception.
            return false;
        }

        if (!$media){
            $media = 'screen';
        }

        if (!$rel){
            $rel = 'stylesheet';
        }

        if (!$type){
            $type = 'text/css';
        }

        if (!isset($GLOBALS['assetsLink'])) {
            $GLOBALS['assetsLink'] = array();
        }

        $GLOBALS['assetsLink'][] = array('filename' => $filename,
                                         'media'    => $media,
                                         'type'     => $type,
                                         'rel'      => $rel,
                                         'sizes'    => $sizes,
                                         'hreflang' => $hreflang);

        return true;
    }

    /**
     * Add Meta to output array
     *
     * @access public
     * @global array  assetsMeta
     * @param  string $name             Connects the content attribute to a name.
     * @param  string $content          Defines meta information to be associated with http-equiv or name
     * @param  string $httpequiv        Connects the content attribute to an HTTP header
     * @param  string $charset          Defines the character encoding for the document
     * @return bool
     */
    function addMeta($name, $content, $httpequiv = false, $charset = false)
    {
        if (empty($name) || empty($content)) {
            // Fail silently Intentionally.  Could extend with PHP5 Exception.
            return false;
        }

        if (!isset($GLOBALS['assetsMeta'])) {
            $GLOBALS['assetsMeta'] = array();
        }

        $GLOBALS['assetsMeta'][] = array('name'     => $name,
                                         'content'  => $content,
                                         'httpequiv'=> $httpequiv,
                                         'charset'  => $charset);

        return true;
    }

    /**
     * Add Title to output array
     *
     * @access public
     * @global array  assetsTitle
     * @param  string $title            Page Title.
     * @return bool
     */
    function addTitle($title)
    {
        if (empty($title)) {
            return false;
        }

        if (!isset($GLOBALS['assetsTitle'])) {
            $GLOBALS['assetsTitle'] = array();
        }
        $GLOBALS['assetsTitle'][] = array('title' => $title);
        return true;
    }

    function addPageTitle($title)
    {
        return $this->addTitle($title);
    }

    function renderHeadScript()
    {
        if (!isset($GLOBALS['assetsScript'])) {
            return false;
        }

        foreach ($GLOBALS['assetsScript'] as $key => $var) {
            if ($key == 'head'){
                foreach ($var as $data){
                    echo '<script src="'. base_url() . $this->siteJSPath .'/'. $data['filename'] . '"></script>' . "\n";
                }
            }
        }

        return false;
    }

    function renderHeadInlineScript()
    {
        if (!isset($GLOBALS['assetsInlineScript'])) {
            return false;
        }

        foreach ($GLOBALS['assetsInlineScript'] as $key => $var) {
            if ($key == 'head'){
                foreach ($var as $data){
                    echo $data['script'] . "\n";
                }
            }
        }

        return false;
    }

    function renderHeadJavaScript()
    {
        return $this->renderHeadScript();
    }

    function renderBodyJavaScript()
    {
        return $this->renderBodyScript();
    }

    function renderBodyScript()
    {
        if (!isset($GLOBALS['assetsScript'])) {
            return false;
        }

        foreach ($GLOBALS['assetsScript'] as $key => $var) {
            if ($key == 'body'){
                foreach ($var as $data){
                    echo '<script src="
                    			'. base_url() . $this->siteJSPath . '/' . $data['filename'] . '"></script>' . "\n";
                }
            }
        }

        return false;
    }

    function renderBodyInlineScript()
    {
        if (!isset($GLOBALS['assetsInlineScript'])) {
            return false;
        }

        foreach ($GLOBALS['assetsInlineScript'] as $key => $var) {
            if ($key == 'body'){
                foreach ($var as $data){
                    echo $data['script'] . "\n";
                }
            }
        }

        return false;
    }

    function renderCSS()
    {
        if (!isset($GLOBALS['assetsLink'])) {
            return false;
        }

        foreach ($GLOBALS['assetsLink'] as $var) {
            echo '<link type="text/css" rel="stylesheet" media="' . $var['media'] .'" href="'. base_url() .'assets/css/' . $var['filename'] . '" />' . "\n";
        }

        return false;
    }

    function renderTitle()
    {

        if (!isset($GLOBALS['assetsTitle'])) {
            return $this->siteTitle;
        }

        foreach ($GLOBALS['assetsTitle'] as $var) {
            return $this->siteTitle .' : '. $var['title'];
        }

        return false;
    }

    function renderPageTitle()
    {

        if (!isset($GLOBALS['assetsTitle'])) {
            echo $this->siteTitle;
            return;
        }

        foreach ($GLOBALS['assetsTitle'] as $var) {
            echo $var['title'];
        }

        return false;
    }

    function renderSiteTitle()
    {
        echo $this->siteTitle;
        return false;
    }

    private function getBaseUrl()
    {
        $this->CI = &get_instance();
        return $CI->config->item('base_url');
    }

    private function getSiteTitle()
    {
        $this->CI = &get_instance();
        return $CI->config->item('base_url');
    }
}
?>

Somewhat based on the similar xaraya functions. GPL, feel free to share.