Are there any Christian denominations that don't believe Jesus is the only way to salvation? While answering another question, I made a statement that I thought was universal in Christianity:


  Jesus is the only route to heaven; without him, you go to hell.


Are there Christian denominations that disagree with this statement?  If so, which ones and why do they disagree with this statement?
Catholics believe that Only those baptised in Jesus' name will go to heaven. 

But we also believe that 


  God has bound salvation to the sacrament of Baptism, but he himself is not bound by his sacraments. ccc 1257


So, there is hope for:


People who never have heard of Jesus, even those born before him.
Children or catechumens who die before baptism. 
People who die a holy death, but lived a bad life. 


These people receive a different kind of the same Baptism one would receive in a Church, and it's all done through Christ.