[kjc]

You may want your vet to check for any infection first.

It sounds like she may have an excitable and/or submissive peeing condition. Sometimes they grow out of it, sometimes not. Try to minimize communications with her until after she has gone outside. Don't make over her or cause her to become real excited when you get home... just go in and go right to her and get her outside.

Ignore anything she may have done wrong while you were out, minimize greatly any greeting you use with her, just get her outside as quickly and as quietly as possible and allow her to go potty and give her tons of praise. I believe the rule is 1 hour of holding time for each month of age, so she should be able to hold her urine for around 5 hours, to expect any longer of her would be unfair.