Hover ad

Hover ad

Hover ads are a special type of pop-up ads created using Dynamic HTML, JavaScript and similar web browser technologies. Because they do not scroll with the web page, they appear to "hover" over the page, usually obscuring the content.


Being among the most effective forms of web advertisingFact|date=August 2008, pop-up ads acquired a certain share of online advertising solutions and technologies. The first Internet pop-ups were created using the window.open() JavaScript function, which opens a new browser window. The advertising content was presented in the window as HTML content loaded from a web address. These pop-ups were easily blocked by pop-up blockers, such as the Google Toolbar, which could be downloaded at no cost.

In order to circumvent these pop-up blockers, some online advertisers tried a different method of opening pop-ups, Dynamic HTML, which is more integral to the functioning of a web-browser and thus harder to block.


Hover ads are developed around several web browser technologies but in the center of theirrealization is utilized DHTML, a technique where JavaScript modifies the content of the page. Using JavaScript, certain levels and objects ofthe browser’s DOM are manipulated to produce window-like visual DHTML elements representing hover ads or hover ad windows. The basic attribute used is a CSS HTML element attribute — position. Modern browsers implement cascading style sheets in order to separate presentation from content. The CSS technology also enables the JavaScript content of a web page to manipulate programmatically CSS attributes of various HTML elements constituting the web page's content.

The first movable HTML elements were introduced in Netscape 4 with the so called layer technology.Now it has been deprecated. Hover ads tend to be very hard to block by pop-up blocking softwarebecause the hover ad window is an integral part of the HTML content of the web page. Thus asoftware filtering the content has no algorithmic means of recognizing and removing parts ofthe content, either descriptive or procedural, that create, populate and manipulate the hover ad's window.


* Adams, Cecil. " [http://www.straightdope.com/columns/041015.html What's up with popup ads?] ". "The Straight Dope". October 15, 2004.
* Zabunov, S. " [http://popup-toolkit.com/articles/artistic-popup-approach.html From Annoyance to Pleasure — The Artistic Popup Approach] ". May 12, 2006.

External links

* [http://popup-toolkit.com/hover_ads_examples/ Hover Ad Examples]
* [http://dhtmlpopups.webarticles.org/ DHTML popup tutorial]

Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • Hover! — Opening screen of Hover! Developer(s) Microsoft Publisher(s) Mic …   Wikipedia

  • Hover — can refer to:* Float * Levitation * Hover (helicopter) nearly stationary flight in a helicopter. * Hovercraft * Hovercar * Ground effect in aircraft * Hover!, a computer game for Microsoft Windows * Hover Chamber Choir, established in 1992 in… …   Wikipedia

  • Höver — bezeichnet: Höver (Sehnde), ein Ortsteil in der Stadt Sehnde in der Region Hannover Höver (Weste), ein Ortsteil der Gemeinde Weste (Niedersachsen) in der Samtgemeinde Bevensen im Landkreis Uelzen Höver, ist der Name von folgenden Personen: Albert …   Deutsch Wikipedia

  • Hover! — Desarrolladora(s) Microsoft Compositor(es) Stan LePard Última versión Plataforma(s) Mic …   Wikipedia Español

  • Hover — Hov er, v. i. [imp. & p. p. {Hovered}; p. pr. & vb. n. {Hovering}.] [OE. hoveren, and hoven, prob. orig., to abide, linger, and fr. AS. hof house; cf. OFries. hovia to receive into one s house. See {Hovel}.] 1. To hang fluttering in the air, or… …   The Collaborative International Dictionary of English

  • hover — (v.) c.1400, hoveren, frequentative of hoven hover, tarry, linger; see HOVE (Cf. hove) (1). Related: Hovered; hovering. As a noun from 1510s …   Etymology dictionary

  • Hover — Hov er, n. [Etymol. doubtful.] A cover; a shelter; a protection. [Archaic] Carew. C. Kingsley. [1913 Webster] …   The Collaborative International Dictionary of English

  • hover — index prowl, vacillate Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • hover — *flit, flutter, flitter, flicker Analogous words: *hang, suspend: poise, balance (see STABILIZE): float, *fly, skim, sail …   New Dictionary of Synonyms

  • hover — [v] hang, float over be suspended, brood over, dance, drift, flicker, flit, flitter, flutter, fly, hang about, linger, poise, wait nearby, waver; concept 154 Ant. lie, rest, settle …   New thesaurus

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”