MT4: Equity TP/SL and TP Percentage EA (code must be readable.)

Hi,

I need an EA coded that monitors account equity and triggers TP, resets equity SL and allows me to TP based on percentage of equity.

Parameters 

Start_Equity_GBP //This is my starting equity.

SL_Equity_GBP //When GBPx has been reached, equity SL moves up to lock in profits.

TP_Equity_PC //This will TP based on percentage(%) of Start_Equity.

Scenario 

Start_Equity_GBP: 2000

SL_Equity_GBP: 50

TP_Equity_PC: 25

So, my starting equity is £2000, my SL_Equity_GBP is £50 and my  TP_Equity_PC is 25%.

When SL_Equity_GBP reaches £50, the SL is moved up to £2050 and so on.

If the  TP_Equity_PC reaches £500 (25% of £2000 = £500) then ALL trades are closed.

PLEASE NOTE: I intend to "copy and paste" the code into numerous EAs, so I will need access to the source code of this EA.

I look forward to your replies.

Dave.