changin output file name

I'm trying to write a program for class (yes, I'm just learning programming:)) and I need to get a string input, then produce an output text file with that name. I know how to write output to text files, but I can't figure out how I can get the value of a string variable to be the name of the text file, therefore producing a new file each time a new name is entered. The problem for me is the fact that the filename is in double quotes "example.txt", so I can't substitute the variable name in. Any help is appreciated. Thanks.

Matt

ofstream fout;
char filename[80];
char more = 'y';
while(more == 'y')
{
cout << "enter new file name with extents----xxxxx.eee" << endl;
cin >> filename;
fout(filename);
fout << "ha ha" << endl;
fout.close();
cout << "more? y/n)
cin >> more;
}

the parameter for streams is a c_style string or object that can be converted into c_style string "automatically" like a literal string (string in double quotes) or instance of string class from STL.

Thanks for the quick reply, appreciate your help (and yes, it worked, but you knew that already).

Matt