WHAT KIND OF SPIDER IS A WHITE SPIDER WITH A BRIGHT ORANGE PATTERN ON ITS BACK
a little spider black legs and yellow back with black spots
Could be the Black and yellow garden spider.
The Orb Weaver is the spider with an orange back and black diamonds on its back. It is not aggressive and not venomous.
The black spider with reddish-orange on its back is a redback spider. These Australian spiders are members of the same family of spider as the black widow and have highly dangerous venom.
The Black Widow Spider has either a yellow, red, or orange hourglass, but sometimes can look like a dot. Links: http://mysite.verizon.net/vzer75kc/
It Is A Mexican Spider
It may be a Black and Yellow Argiope, which is a common orb web spider. Follow the related link to see a picture.
Sounds like a banana spider, they are rampant in the South (USA) in the summer.
Black and yellow argiope perhaps?