You are correct in that atheists don't have a written moral code, like the 10 commandments, but you are incorrect that we don't have values... Atheists are the only ones who took the time to think about morals on their own... we decided right from wrong based on the impact on society, not from some dusty old book...
I do agree that Atheists do have morals, however those morals were impacted, be it by indirect historical influence or (doesn't seem like in this case) directly by providing a base, by the "dusty old book" you are talking about.
This is a common misconception...
We have already established that do not steal/murder are based in atheism/philosophy, rather than christianity...
I propose that all morals are based in such things... christians also did not invent the concept of the golden rule, "treat your neighbor as yourself", etc...
The only influences that christianity has had on society are negative... all of them... there is evidence to back up this claim
Christianity has convinced people for 2000 years that witches, homosexuality, and practicing any other religion is evil and worthy of death (it says so right in the book)
Christianity has also preached that slavery is lawful and not a bad thing... in both the old and new testament, so don't get all, "but the new testament doesn't say that" on me...
The entirety of christian history is nothing but war and murdering "the other"...
You want to talk about the most savage murderer of all time?
God... no contest... God murders countless people in the bible... literally...
How do you count how many people God killed in the flood?
In just the places which give numbers, God is responsible for murdering 2,400,000+ people (not counting the flood, 10th plague of Egypt, and other uncountable genocides at the hand of God)... Which war had more than 2,400,000 deaths?
http://rationalwiki.org/wiki/Examples_of_God_personally_killing_peopleWhat sort of all-knowing God creates a planet only to declare everyone evil, wipe it out with a flood, and start over?
Couldn't he see that coming, and create humans slightly less evil the first time?