func: function () payable public {
          require( (msg.value >= 0.1 ether) &&  block.timestamp >= start && block.timestamp <= deadline && amountRaised < maxAmount
          && ( (msg.value <= 100 ether) || (msg.value > 100 ether && whitelist[msg.sender]==true) )
          );
  
          uint amount = msg.value;
          balanceOf[msg.sender] += amount;
          amountRaised += amount;
          FundTransfer(msg.sender, amount, true);
          if (beneficiary.send(amount)) {
              FundTransfer(beneficiary, amount, false);
          }
      }