How to make blinking effect on a GUITexture?

I'm trying to make a GUITexture blink and was trying to set it to null to achieve that effect. Is it possible? if not how do I make a blinking effect on a texture?

Use GUITexture.color's Alpha channel to show & hide !!!

GUITexture a = new GUITexture();
a.color = new Color(a.color.r, a.color.g, a.color.b, 0.0f...1.0f);

You can, but it would be better to just disable the GUITexture component.

You could use a MovieTexture (with smooth transitions) as a GUITexture.

(Take a look at this answer Video on a GUITexture.)