how do i install magento payment module created by me in magento site

recently i have customized a module that i install开发者_StackOverflow中文版ed from magento community. it is a payment module.i have modified it for my own payment gateway that goes to a url and after payment completion,redirect user to magento site. it is working fine.but i want to make it as a module with that i can integrate my module with any magento site. i want to provide a option for install or something like that.i don't know how to do that.

if anybody here.please help me.

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1. Package your extension (System -> Magento Connect -> Package Extensions)
2. Submit it to Magento Commerce (Login to magentocommerce.com and submit your packaged extension)