Front of my iPhone 4 glass is broken what exactly do I need to fix it

The front of my iPhone 4 glass is broken what exactly do I need to fix it?

You can't

A new screen for starters, and tools (apparently eBay has iPhone repair kits). If you have no experience in fixing things like this, either take it to someone that does or save yourself the time and money and just throw it away or sell it cheap.

Save all your data to the itunes on your computer and if you go to the gennis bar at the apple store the will give you a new one then redownload all the stuff, i broke mine twice and did this but had my 7 year old sister do it, she brings in the cuteness factor