How to Open web pages

Question

Hi... I have a web page with grid view control for display customer records. I already put hyper link field for open another page. It's working. But my table have a one of field call "Single Image" and hope to add two values. I want to open two pages accoring to values. (If singleImage=True then single.aspx else dtls.aspx). How to do this..? Thanks Kelum