contract ERC20Interface 
{
	// Get the total token supply
	function totalSupply() constant returns (uint256 totalSupply);

	// Get the account balance of another account with address _owner
	function balanceOf(address _owner) constant returns (uint256 balance);

	// Send _value amount of tokens to address _to
	function transfer(address _to, uint256 _value) returns (bool success);
 
	// Send _value amount of tokens from address _from to address _to 
	function transferFrom(address _from, address _to, uint256 _value) returns (bool success);
 
	// Allow _spender to withdraw from your account, multiple times, up to the _value amount. 
	// If this function is called again it overwrites the current allowance with _value. 
	// this function is required for some DEX functionality 
	function approve(address _spender, uint256 _value) returns (bool success);
 
	// Returns the amount which _spender is still allowed to withdraw from _owner
	function allowance(address _owner, address _spender) constant returns (uint256 remaining);
 
	// Triggered when tokens are transferred.
	event Transfer(address indexed _from, address indexed _to, uint256 _value);

	// Triggered whenever approve(address _spender, uint256 _value) is called. 
	event Approval(address indexed _owner, address indexed _spender, uint256 _value); 
}
/* ERC20 interface */
function balanceOf(address _owner) constant returns (uint256 balance);

// Get the account balance of another account with address _owner