Reagerding Macro

Hello,
I am using ofice 2003(Excel).While opening the excel every time i am getting a popup reagarding the enable macro option,what i am doing is setting the security level to min.Then i am not getting the popup.

This is the message i am getting while opening the sheet.

"Macros are disabled because the security level is set to high.To Run the macro change the security level to a lower setting and verify the macros are signed and trusted"

Is there is any solution to write a macro with any javascript,etc so that ,i should not get that popup again