Ethereum Unit(ETH)

contract myToken {
  /* Public variables of the token */
  string public name;
  string public symbol;
  uint8 public decimals;
  /* This creates an array with all balances */
  mapping (address => uint) public balanceOf;
  /* This generates a public event on the blockchain that will notify clients */
  event Transfer(address indexed from, address indexed to, uint256 value);
  /* Initializes contract with initial supply tokens to the creator of the contract */
  function myToken(uint256 _supply, string _name, uint8 _decimals, string _symbol) {
    /* if supply not given then generate 1 million of the smallest unit of the token */
    if (_supply == 0) _supply = 1000000;
    /* Unless you add other functions these variables will never change */
    balanceOf[msg.sender] = _supply;
    name = _name; 
    symbol = _symbol;
    /* If you want a divisible token then add the amount of decimals the base unit has */
    decimals = _decimals;
  }
  /* Send coins */
  function transfer(address _to, uint256 _value) returns(bool success) {
    /* if the sender doenst have enough balance then stop */
    if (balanceOf[msg.sender] < _value) throw;
    /* Add and subtract new balances */
    balanceOf[msg.sender] -= _value;
    balanceOf[_to] += _value;
    /* Notifiy anyone listening that this transfer took place */
    Transfer(msg.sender, _to, _value);
  }
}