Juntar dos imagenes. Tocando con ratón sale distinto imagen.
El 1-ro y 3-ro imagenes son iguales.
HTML
<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}"><img style="display: block;" onmouseover="this.src='http://www.animated-gifs.eu/category_transportation/transportation-airship/0001.gif'" onmouseout="this.src='http://www.animated-gifs.eu/category_transportation/transportation-airship/0004.gif'" src="http://www.animated-gifs.eu/category_transportation/transportation-airship/0001.gif" alt="" width="25" height="35" /></a>
/https%3A%2F%2Flh3.googleusercontent.com%2F-drj07eUI7IQ%2FWfshPpdTtLI%2FAAAAAAADOm4%2FTd99GxjOCOENdzzPzZLDN5FnnBj4D7NSgCJoC%2Fw320-h240-rw%2F17.gif)
/https%3A%2F%2Flh3.googleusercontent.com%2F-6eSJcfFteoM%2FWfsidlbFYVI%2FAAAAAAADOrE%2Fj2oNYgt8VzE4jsWh8vwdiBuDNlFKZlGMwCJoC%2Fw292-h468-rw%2F20a.gif)
/https%3A%2F%2Flh3.googleusercontent.com%2F-Z71wS6lOmNE%2FWfyAV46cGSI%2FAAAAAAADOxM%2FzuCej6ophBAa0HTDh4C7GzB-lh0h0fYTQCJoC%2Fw356-h555-rw%2F2.gif)
/https%3A%2F%2Flh3.googleusercontent.com%2F-GgWdAE3rGjI%2FWfyQTJujPRI%2FAAAAAAADO0w%2FJPSejYaMeFcu9oHRK1G1NLPYVRp9w30eACJoC%2Fw360-h540-rw%2F1.gif)