Adding screenshot for each link.

This is my procedure:

1. Adding field called image equal to the field URL (except varchar = char)
This field is to enter the image URL (the addres of the image file).

2. Adding in link.html before <%if Description%> tag the code:



3. Thats all



Problems. If exist the image url in a specific link, the image appears ok but in all others links appears this:



Example:

---

Yahoo popular

Blah blah blah blah blah blah blah blah blah blah blah blah blah blha blah blah blha blha lbhla blha lbha

---

Google popular

Blah blah blah blah blah blah blah blah blah blah blah blah blah blha blah blah blha blha lbhla blha lbha

---

Altavisa popular

Blah blah blah blah blah blah blah blah blah blah blah blah blah blha blah blah blha blha lbhla blha lbha

---

In the database, the links Google and Altavisa havent no images, and Yahoo have a screenshot URL.

Anyone know how to solve the problem?



Thank you very much.