Doc Block changes

git-svn-id: https://phpexcel.svn.codeplex.com/svn/trunk@88175 2327b42d-5241-43d6-9e2a-de5ac946f064

Classes/PHPExcel/CachedObjectStorage/Memory.php

@@ -68,6 +68,12 @@ class PHPExcel_CachedObjectStorage_Memory extends PHPExcel_CachedObjectStorage_C
 	}	//	function getCacheData()
 
 
+	/**
+	 * Clone the cell collection
+	 *
+	 * @param	PHPExcel_Worksheet	$parent		The new worksheet
+	 * @return	void
+	 */
 	public function copyCellCollection(PHPExcel_Worksheet $parent) {
 		parent::copyCellCollection($parent);
 
@@ -81,6 +87,11 @@ class PHPExcel_CachedObjectStorage_Memory extends PHPExcel_CachedObjectStorage_C
 	}
 
 
+	/**
+	 * Clear the cell collection and disconnect from our parent
+	 *
+	 * @return	void
+	 */
 	public function unsetWorksheetCells() {
 		//	Because cells are all stored as intact objects in memory, we need to detach each one from the parent
 		foreach($this->_cellCache as $k => &$cell) {