If the visibility specifier is not public, then other contracts will not be able to access the variable.
You, however, can access it, using
The index is 0 since this is the first global variable defined. If you are not sure what index the variable is at, or its a more complex type like a mapping or array, you can use http://live.ether.camp to visually inspect the storage of the contract.
If you upload the contract source to that site, it will match the values in storage with variable names from the source code.