diff --git a/lib/documentmanagement/documentModify.inc b/lib/documentmanagement/documentModify.inc
new file mode 100644
index 0000000..2d0a939
--- /dev/null
+++ b/lib/documentmanagement/documentModify.inc
@@ -0,0 +1,91 @@
+<?php
+
+/***
+* Class documentModify.inc
+*
+* Contains all functions required to upload, alter and
+* delete a document.
+*
+* @author Rob Cherry, Jam Warehouse (Pty) Ltd, South Africa
+* @date 13 January 2003
+*/
+
+class DocumentModify {
+	
+	/**
+	* Checks if the current user has write permission for a specific folder
+	*	
+	* @param $iFolderID		Primary key of folder to check
+	*
+	* @return true is the user has folder write permission, false otherwise and set $_SESSION["errorMessage"]
+	*/
+	function hasFolderWritePermission($iFolderID) {
+		
+		return true;
+	}
+	
+	/**
+	* Check is the user is assigned a specific role that has write permission for a folder
+	*	*
+	* @param $sRoleName		Name of role to check
+	* @param $iFolderID 	Primary key of folder to check
+	*
+	* @return true is the user has the role assigned, false otherwise and set $_SESSION["errorMessage"]
+	*/
+	function hasWriteRoleForFolder($sRoleName, $iFolderID) {
+		global $default;
+		$iRoleID = $this->getRoleID($sRoleName);
+		if (!($iRoleID === false)) {
+			$sql = new Owl_DB();
+			$sql->query("SELECT * FROM " . $default->owl_folders_user_links_table . " AS FURL INNER JOIN " . $default->owl_role_table . " AS R ON FURL.role_id = R.id WHERE role_id = " . $iRoleID . " AND folder_id = " . $iFolderID . " AND user_id = " . $_SESSION["user_id"] . " AND R.can_write = 1");
+			if ($sql->next_record()) {
+				return true;
+			}
+			$_SESSION["errorMessage"] = $lang_err_user_role;
+			return false;
+		}
+		//error message is set in $this->getRoleID($sRoleName);
+		return false;
+		
+	}
+	
+	/**
+	* Get the primary key for a role
+	*
+	* @param $sRoleName		Name of role to get primary key for
+	*
+	* @return ID if role exists, false otherwise and set $_SESSION["errorMessage"]
+	*/
+	function getRoleID($sRoleName) {
+		global $default, $lang_database_error;
+		if (roleExists($sRoleName) {
+			$sql = new Owl_DB();
+			$sql->query("SELECT id FROM " . $default->owl_role_table . " WHERE name = '" . $sRoleName . "'";
+			sql->next_record();
+			return sql->f("id");	
+		}
+		$_SESSION["errorMessage"] = $lang_database_error;
+		return false;
+	}
+	
+	/**
+	* Checks if a given role exists
+	*
+	* @param $sRoleName		Role to check for
+	*
+	* @return true if role exists, false otherwise and set $_SESSION["errorMessage"] 
+	*/
+	function roleExists($sRoleName) {
+		global $default;
+		$sql = new Owl_DB();
+		$sql->query("SELECT id FROM " . $default->owl_role_table . " WHERE name = '" . $sRoleName . "'";
+		if (sql->next_record()) {
+			return true;	
+		}
+		$_SESSION["errorMessage"] = $lang_err_role_not_exist . $sRoleName;
+		return false;
+	}
+	
+}
+
+?>