Pop up with yes no and corresponding action

I have following code:

open
/erhverv_administration/



clickAndWait
link=Søg virksomhed



type
id=cvr
11737293


clickAndWait
css=input[type="submit"]



clickAndWait
link=11737293



clickAndWait
//input[@value='Luk aftale']



getEval
alert("Do you want to delete the company ?")


clickAndWait
link=Cancel



click
id=terminateAgreement



clickAndWait
css=input[type="submit"]



Basically this is here where I want to make a choice wheter to close a company or cancel my request. Can I make pop up with a yes and no button and the scripts jumps to the right place:
Like I do not want to close company:

clickAndWait
link=Cancel




Or company should be closed

click
id=terminateAgreement



clickAndWait
css=input[type="submit"]





Thanks in advanced