diff --git a/code/NestedCheckboxsetField.php b/code/NestedCheckboxsetField.php
index d796cbe..74b3526 100644
--- a/code/NestedCheckboxsetField.php
+++ b/code/NestedCheckboxsetField.php
@@ -1,136 +1,143 @@
 <?php
-class NestedCheckboxSetField extends CheckboxSetField {
-	private $rootClass;
-
-	private $rootTitle;
-
-	private $childRelation;
-
-	private $childTitle;
-
-	/**
-	 * @param $rootClass string Sets the root class (which the relationships should be held within)
-	 * @return NestedCheckboxSetField This object (for chaining)
-	 */
-	public function setRootClass($rootClass) {
-		$this->rootClass = $rootClass;
-		return $this;
-	}
-
-	public function setRootTitle($rootTitle) {
-		$this->rootTitle = $rootTitle;
-		return $this;
-	}
-
-	public function setChildRelation($childRelation) {
-		$this->childRelation = $childRelation;
-		return $this;
-	}
-
-	public function setChildTitle($childTitle) {
-		$this->childTitle = $childTitle;
-		return $this;
-	}
-
-	public function Field($properties = array()) {
-		Requirements::css(MODULE_NESTEDCHECKBOXSETFIELD_DIR . '/css/NestedCheckboxSetField.css');
-
-		$rootSourceParam = $this->rootClass;
-		$rootTitleParam = $this->rootTitle;
-		$childRelationParam = $this->childRelation;
-		$childTitleParam = $this->childTitle;
-		$source = $this->source;
-		$values = $this->value;
-		$items = array();
-
-		// Get values from the join, if available
-		if(is_object($this->form)) {
-			$record = $this->form->getRecord();
-			if(!$values && $record && $record->hasMethod($this->name)) {
-				$funcName = $this->name;
-				$join = $record->$funcName();
-				if($join) {
-					foreach($join as $joinItem) {
-						$values[] = $joinItem->ID;
-					}
-				}
-			}
-		}
-
-		// Source is not an array
-		if(!is_array($source) && !is_a($source, 'SQLMap')) {
-			if(is_array($values)) {
-				$items = $values;
-			} else {
-				// Source and values are DataObject sets.
-				if($values && is_a($values, 'SS_List')) {
-					foreach($values as $object) {
-						if(is_a($object, 'DataObject')) {
-							$items[] = $object->ID;
-						}
-					}
-				} elseif($values && is_string($values)) {
-					$items = explode(',', $values);
-					$items = str_replace('{comma}', ',', $items);
-				}
-			}
-		} else {
-			// Sometimes we pass a singluar default value thats ! an array && !SS_List
-			if($values instanceof SS_List || is_array($values)) {
-				$items = $values;
-			} else {
-				$items = explode(',', $values);
-				$items = str_replace('{comma}', ',', $items);
-			}
-		}
-
-		$rootSources = $rootSourceParam::get()->sort("$rootTitleParam ASC");
-		$rootOptions = array();
-		$rootOdd = 0;
-
-		foreach($rootSources as $source) {
-			// $source is an instance of $this->rootClass, which we can call $this->childRelation() on
-			$childSources = $source->$childRelationParam()->sort("$childTitleParam ASC");
-			$rootTitle = $source->$rootTitleParam;
-			$childArray = array();
-			$childOdd = 0;
-
-			foreach($childSources as $childSource) {
-				$title = $childSource->$childTitleParam;
-				$value = $childSource->ID;
-				$itemID = $this->ID() . '_' . preg_replace('/[^a-zA-Z0-9]/', '', $value);
-				$childOdd = ($childOdd + 1) % 2;
-				$extraClass = $childOdd ? 'odd' : 'even';
-				$extraClass .= ' val' . preg_replace('/[^a-zA-Z0-9\-\_]/', '_', $value);
-
-				$childArray[] = new ArrayData(array(
-					'ID' => $itemID,
-					'Class' => $extraClass,
-					'Name' => "{$this->name}[{$value}]",
-					'Value' => $value,
-					'Title' => $title,
-					'isChecked' => in_array($value, $items) || in_array($value, $this->defaultItems),
-					'isDisabled' => $this->disabled || in_array($value, $this->disabledItems)
-				));
-			}
-
-			$rootOdd = ($rootOdd + 1) % 2;
-			$extraClass = $rootOdd ? 'odd' : 'even';
-
-			$rootOptions[] = new ArrayData(array(
-				'Title' => $rootTitle,
-				'Class' => $extraClass,
-				'Options' => new ArrayList($childArray)
-			));
-		}
-
-		// $rootOptions is now the complete ArrayData of options => sub-options
-		$properties = array_merge($properties, array('Options' => new ArrayList($rootOptions)));
-
-		return $this->customise($properties)->renderWith($this->getTemplates());
-	}
-
-	public function Type() {
-		return 'optionset checkboxset nestedcheckboxset';
-	}
-}
\ No newline at end of file
+class NestedCheckboxSetField extends CheckboxSetField
+{
+    private $rootClass;
+
+    private $rootTitle;
+
+    private $childRelation;
+
+    private $childTitle;
+
+    /**
+     * @param $rootClass string Sets the root class (which the relationships should be held within)
+     * @return NestedCheckboxSetField This object (for chaining)
+     */
+    public function setRootClass($rootClass)
+    {
+        $this->rootClass = $rootClass;
+        return $this;
+    }
+
+    public function setRootTitle($rootTitle)
+    {
+        $this->rootTitle = $rootTitle;
+        return $this;
+    }
+
+    public function setChildRelation($childRelation)
+    {
+        $this->childRelation = $childRelation;
+        return $this;
+    }
+
+    public function setChildTitle($childTitle)
+    {
+        $this->childTitle = $childTitle;
+        return $this;
+    }
+
+    public function Field($properties = array())
+    {
+        Requirements::css(MODULE_NESTEDCHECKBOXSETFIELD_DIR . '/css/NestedCheckboxSetField.css');
+
+        $rootSourceParam = $this->rootClass;
+        $rootTitleParam = $this->rootTitle;
+        $childRelationParam = $this->childRelation;
+        $childTitleParam = $this->childTitle;
+        $source = $this->source;
+        $values = $this->value;
+        $items = array();
+
+        // Get values from the join, if available
+        if (is_object($this->form)) {
+            $record = $this->form->getRecord();
+            if (!$values && $record && $record->hasMethod($this->name)) {
+                $funcName = $this->name;
+                $join = $record->$funcName();
+                if ($join) {
+                    foreach ($join as $joinItem) {
+                        $values[] = $joinItem->ID;
+                    }
+                }
+            }
+        }
+
+        // Source is not an array
+        if (!is_array($source) && !is_a($source, 'SQLMap')) {
+            if (is_array($values)) {
+                $items = $values;
+            } else {
+                // Source and values are DataObject sets.
+                if ($values && is_a($values, 'SS_List')) {
+                    foreach ($values as $object) {
+                        if (is_a($object, 'DataObject')) {
+                            $items[] = $object->ID;
+                        }
+                    }
+                } elseif ($values && is_string($values)) {
+                    $items = explode(',', $values);
+                    $items = str_replace('{comma}', ',', $items);
+                }
+            }
+        } else {
+            // Sometimes we pass a singluar default value thats ! an array && !SS_List
+            if ($values instanceof SS_List || is_array($values)) {
+                $items = $values;
+            } else {
+                $items = explode(',', $values);
+                $items = str_replace('{comma}', ',', $items);
+            }
+        }
+
+        $rootSources = $rootSourceParam::get()->sort("$rootTitleParam ASC");
+        $rootOptions = array();
+        $rootOdd = 0;
+
+        foreach ($rootSources as $source) {
+            // $source is an instance of $this->rootClass, which we can call $this->childRelation() on
+            $childSources = $source->$childRelationParam()->sort("$childTitleParam ASC");
+            $rootTitle = $source->$rootTitleParam;
+            $childArray = array();
+            $childOdd = 0;
+
+            foreach ($childSources as $childSource) {
+                $title = $childSource->$childTitleParam;
+                $value = $childSource->ID;
+                $itemID = $this->ID() . '_' . preg_replace('/[^a-zA-Z0-9]/', '', $value);
+                $childOdd = ($childOdd + 1) % 2;
+                $extraClass = $childOdd ? 'odd' : 'even';
+                $extraClass .= ' val' . preg_replace('/[^a-zA-Z0-9\-\_]/', '_', $value);
+
+                $childArray[] = new ArrayData(array(
+                    'ID' => $itemID,
+                    'Class' => $extraClass,
+                    'Name' => "{$this->name}[{$value}]",
+                    'Value' => $value,
+                    'Title' => $title,
+                    'isChecked' => in_array($value, $items) || in_array($value, $this->defaultItems),
+                    'isDisabled' => $this->disabled || in_array($value, $this->disabledItems)
+                ));
+            }
+
+            $rootOdd = ($rootOdd + 1) % 2;
+            $extraClass = $rootOdd ? 'odd' : 'even';
+
+            $rootOptions[] = new ArrayData(array(
+                'Title' => $rootTitle,
+                'Class' => $extraClass,
+                'Options' => new ArrayList($childArray)
+            ));
+        }
+
+        // $rootOptions is now the complete ArrayData of options => sub-options
+        $properties = array_merge($properties, array('Options' => new ArrayList($rootOptions)));
+
+        return $this->customise($properties)->renderWith($this->getTemplates());
+    }
+
+    public function Type()
+    {
+        return 'optionset checkboxset nestedcheckboxset';
+    }
+}