<a href="YOUR-URL">
<img src="http://i1380.photobucket.com/albums/ah184/chatala1/Client%20Logos%20Grayscale/CocaCola_zpsdx4zkbyg.png"
onmouseover="this.src='http://i1380.photobucket.com/albums/ah184/chatala1/Client%20Logos%20Color/cokecolor_zpsfktx21ux.png'"
onmouseout="this.src='http://i1380.photobucket.com/albums/ah184/chatala1/Client%20Logos%20Grayscale/CocaCola_zpsdx4zkbyg.png'"></a>
Paste that into a Code Block, switch out the links, be extremely careful not to change anything other than the URLs.If you don’t want the image to link to a “client” site, remove the an