first attempt

all fixed I guess

<?php

/**
 * Intergrates Flex Book web pages
 *
 */
function flex_book_node_view($node) {
  if($node->type == 'flex_book'){
    $load_js = $node->field_load_js;//calls the field and makes it load.js
    foreach($load_js['und'] as $js_file) { // gets the und from laod.js
      drupal_add_js($js_file['value']);// loads the JS to the page
    }
    
    $load_css = $node->field_load_css;//calls the field and makes it load.css
    foreach($load_css['und'] as $css_file) { // gets the und from laod.css
      drupal_add_css($css_file['value']);// loads the CSS to the page
    }
  }
}

flexbook

<?php

/**
    * Intergrates Flex Book web pages
    *
*/
function flex_book_node_view($node, $view_mode ) {
        if($node->type == 'flex_book'){
                $load_js = $node->field_load_js;
                var_dump($load_js);
        }
}

foreach

<?php

/**
    * Intergrates Flex Book web pages
    *
*/
function flex_book_node_view($node, $view_mode ) {
        if($node->type == 'flex_book'){
                $load_js = $node->field_load_js;
                foreach($load_js['und'] as $js_file) { var_dump($js_file); }
                
        }
}

full with css

<?php

/**
    * Intergrates Flex Book web pages
    *
*/
function flex_book_node_view($node) {
        if($node->type == 'flex_book'){
                $load_js = $node->field_load_js;//calls the field and makes it load.js
                    foreach($load_js['und'] as $js_file) // gets the und from laod.js
                      { drupal_add_js($js_file['value']); }// loads the JS to the page
                $load_css = $node->field_load_css;//calls the field and makes it load.css
                    foreach($load_css['und'] as $css_file) // gets the und from laod.css
                      { drupal_add_css($css_file['value']); }// loads the CSS to the page  
                      }
}