Ed_imageresizer::usage PHP Method

    static function usage()
    {
        ob_start();
        ?>

** You must add the server and cache dir paths to the class variables in the plugin file! **

Example:
---------

// ADD PATHS TO YOUR WEB ROOT AND CACHE FOLDER HERE
private $server_path        = '/this/is/my/website/root/folder';                    // no trailing slash
private $cache_path         = '/this/is/my/website/root/folder/and/image/cache/';   // with trailing slash

Paramaters:
----------
* image         ~ the file to resize, will parse file dirs
* maxWidth      ~ maximumm width of resized image
* maxHeight     ~ maximumm height of resized image
* forceWidth    ~ scale up if required accepts "yes" or "no"
* forceHeight   ~ scale up if required accepts "yes" or "no"
* cropratio     ~ eg: square is 1:1
* default       ~ the default image to use if there is no actual image
* alt           ~ alt text
* class         ~ img tag class
* id            ~ img tag id
* title         ~ img tag title
* href_only     ~ if yes just returns the path to the resized file, not the full image tag, useful for modal windows etc. accepts "yes" or "no"
* debug         ~ defaults to no - yes for debug mode (creates error messages instead of quitting quietly) accepts "yes" or "no"
* grayscale     ~ creates a grayscale version of the image accepts "yes" or "no"

Usage Example
----------
{exp:ed_imageresizer
    image="{my_image_field}"
    default=""/images/site/image_coming_soon.jpg"
    maxWidth="300"
    class="myimgclass"
    alt="Image description"
    grayscale="yes"
    }

	<?php 
        $buffer = ob_get_contents();
        ob_end_clean();
        return $buffer;
    }

 * REQUIRES ExpressionEngine 2+
 *
 * @package     ED_ImageResizer
 * @version     1.0.4
 * @author      Glen Swinfield (Erskine Design)
 * @copyright   Copyright (c) 2009 Erskine Design
 * @license     http://creativecommons.org/licenses/by-sa/3.0/ Attribution-Share Alike 3.0 Unported
 *
 */

$plugin_info = array(   'pi_name'           => 'EE2 ED Image Resizer',
                        'pi_version'        => '1.0.4',
                        'pi_author'         => 'Erskine Design',
                        'pi_author_url'     => 'http://github.com/erskinedesign/',
                        'pi_description'    => 'Resizes and caches images on the fly',
                        'pi_usage'          => Ed_imageresizer::usage());

/**
 * Ed_imageresizer For EE2.0
 *
 * @package     ED_ImageResizer
 * @author      Erskine Design
 * @version     1.0.3
 *
 */
Class Ed_imageresizer
{

    public     $return_data     = '';           // return data (from constructor)

    /**