i have a model account.payment and check.manegemnt 

in the Vendor/bills/register payment am going to choose the method the buyer is gonna pay i did all correct except while he is choosing the check i nedd to create the "check number" and if doesn't exist i need to create new one while I press on create and edit in the field check number a popup show up to fill the form but what i want is when the popup show up the vulues of the (amount,vendor..) came along with the pop i sont need only to create the new check number