AddNullSubfolderTest
waitForElementPresent link=Bookmarks
clickAtAndWait link=Bookmarks
waitForVisible //b
clickAtAndWait //b
waitForElementPresent //li[6]/span/a
clickAtAndWait //input[@value='Add Subfolder']
waitForElementPresent //li[7]/span/a
type _28_name
clickAtAndWait //input[@value='Save']
assertTextPresent You have entered invalid data. Please try again.