How to erase node from deque?

[Robert Sturzenegger]

// Hello!

typedef deque<int> D;
typedef D::iterator Iter;

D d;
Iter iter;

// here hundreds of elements pushed back to d

int myNode = d[100];

// Here I want to erase the node with index 100. If I had the iterator of
this node,
// I would use d.erase(iter); But how can I get the iterator? Or is there
another way
// to erase this node?

// Thanks a lot!
// Robert Sturzenegger