How can you find when a Bill is going to be voted on???

I have been reading about this bill that was introduced to senate. (The Cluster Munitions Civilian Protection Act of 2007, introduced in the Senate on February 14th (S.594) by Senators Dianne Feinstein (CA) and Patrick Leahy (VT) and in the House on March 29th (H.R. 1755)) How does it work once it is introduced? Is it then voted on? If so, How do I find WHEN it will be voted on. THank you.