error when order in shipping.php

[scareface]

hello all,

 

I've got this error when I click to the order button :

 

Fatal error: Call to undefined function: quote() in /var/www/html/copres/hosting/copres.net/includes/classes/shipping.php on line 81

 

here's my shipping.php

 

<?php
/*
 $Id: shipping.php,v 1.23 2003/06/29 11:22:05 hpdl Exp $

 osCommerce, Open Source E-Commerce Solutions
 http://www.oscommerce.com

 Copyright (c) 2003 osCommerce

 Released under the GNU General Public License
*/

 class shipping {
var $modules;
// class constructor
function shipping($module = '') {
  global $language, $PHP_SELF;

  if (defined('MODULE_SHIPPING_INSTALLED') && tep_not_null(MODULE_SHIPPING_INSTALLED)) {
	$this->modules = explode(';', MODULE_SHIPPING_INSTALLED);

	$include_modules = array();

	if ( (tep_not_null($module)) && (in_array(substr($module['id'], 0, strpos($module['id'], '_')) . '.' . substr($PHP_SELF, (strrpos($PHP_SELF, '.')+1)), $this->modules)) ) {
	  $include_modules[] = array('class' => substr($module['id'], 0, strpos($module['id'], '_')), 'file' => substr($module['id'], 0, strpos($module['id'], '_')) . '.' . substr($PHP_SELF, (strrpos($PHP_SELF, '.')+1)));
	} else {
	  reset($this->modules);
	  while (list(, $value) = each($this->modules)) {
		$class = substr($value, 0, strrpos($value, '.'));
		$include_modules[] = array('class' => $class, 'file' => $value);
	  }
	}

	for ($i=0, $n=sizeof($include_modules); $i<$n; $i++) {
	  include(DIR_WS_LANGUAGES . $language . '/modules/shipping/' . $include_modules[$i]['file']);
	  include(DIR_WS_MODULES . 'shipping/' . $include_modules[$i]['file']);

	  $GLOBALS[$include_modules[$i]['class']] = new $include_modules[$i]['class'];
	}
  }
}

function quote($method = '', $module = '') {
  global $total_weight, $shipping_weight, $shipping_quoted, $shipping_num_boxes;

  $quotes_array = array();

  if (is_array($this->modules)) {
	$shipping_quoted = '';
	$shipping_num_boxes = 1;
	$shipping_weight = $total_weight;

	if (SHIPPING_BOX_WEIGHT >= $shipping_weight*SHIPPING_BOX_PADDING/100) {
	  $shipping_weight = $shipping_weight+SHIPPING_BOX_WEIGHT;
	} else {
	  $shipping_weight = $shipping_weight + ($shipping_weight*SHIPPING_BOX_PADDING/100);
	}

	if ($shipping_weight > SHIPPING_MAX_WEIGHT) { // Split into many boxes
	  $shipping_num_boxes = ceil($shipping_weight/SHIPPING_MAX_WEIGHT);
	  $shipping_weight = $shipping_weight/$shipping_num_boxes;
	}

	$include_quotes = array();

	reset($this->modules);
	while (list(, $value) = each($this->modules)) {
	  $class = substr($value, 0, strrpos($value, '.'));
	  if (tep_not_null($module)) {
		if ( ($module == $class) && ($GLOBALS[$class]->enabled) ) {
		  $include_quotes[] = $class;
		}
	  } elseif ($GLOBALS[$class]->enabled) {
		$include_quotes[] = $class;
	  }
	}

	$size = sizeof($include_quotes);
	for ($i=0; $i<$size; $i++) {
	  $quotes = $GLOBALS[$include_quotes[$i]]->quote($method);
	  if (is_array($quotes)) $quotes_array[] = $quotes;
	}
  }

  return $quotes_array;
}

function cheapest() {
  if (is_array($this->modules)) {
	$rates = array();

	reset($this->modules);
	while (list(, $value) = each($this->modules)) {
	  $class = substr($value, 0, strrpos($value, '.'));
	  if ($GLOBALS[$class]->enabled) {
		$quotes = $GLOBALS[$class]->quotes;
		for ($i=0, $n=sizeof($quotes['methods']); $i<$n; $i++) {
		  if (isset($quotes['methods'][$i]['cost']) && tep_not_null($quotes['methods'][$i]['cost'])) {
			$rates[] = array('id' => $quotes['id'] . '_' . $quotes['methods'][$i]['id'],
							 'title' => $quotes['module'] . ' (' . $quotes['methods'][$i]['title'] . ')',
							 'cost' => $quotes['methods'][$i]['cost']);
		  }
		}
	  }
	}

	$cheapest = false;
	for ($i=0, $n=sizeof($rates); $i<$n; $i++) {
	  if (is_array($cheapest)) {
		if ($rates[$i]['cost'] < $cheapest['cost']) {
		  $cheapest = $rates[$i];
		}
	  } else {
		$cheapest = $rates[$i];
	  }
	}

	return $cheapest;
  }
}
 }
?>

 

I don't know why I've this error

 

I've installed Groupdiscount & Member_Approval_v1.5_1

 

I don't know how to define this function and where :(

 

Thanks for your help !