View Image in "Description" Field of Google Maps

Hi,
I was just wondering if PHP Runner supports an image to be displayed when you mouse over the clickable map marker on a Google Map. I have the maps working great and can display simple text fields on mouse over, but when I set the description to an image field, I get a bunch of different characaters. I am using SQL with an image field. I also tried to CAST the image field to different types with no success.
CAST ( dbo.[Reads].red_Patch AS ** )
Should I use CONVERT?...or is this not even possible?
Thanks for your help.