Display List and transition tranperenty


I would like to make an transition alpha effect in a object. I have load the object in a display list. I could use glColor4f changing the alpha component but my problem is I have color change into display list.

I am seeing to use texture to make the effect. I could use GL_COMBINE operation with operation alpha.

Do Anyone know if the texture idea is alright or it exist another tool?

Thank you very much.