i am struggling with magento add custom function for checkout method.
how to get popup messages after click the "onepage-guest-register-button" in checkout method.Also need to send email to the vendor with the selected product id in magento.
I am new in magento,any one please help to me.
Thanks,
You can customize login template here:
[Magento root]/app/design/frontend/[your theme package]/[your theme]/template/persistent/checkout/onepage/login.phtml
or here
[Magento root]/app/design/frontend/[your theme package]/[your theme]/template/persistent/customer/form/login.phtml
If you want send mail when someone add product to cart (or something else) you have to check about observer (events handler) on Magento.