How can I make an alert message come up on the persons screen for whom I would like to ask the question? Ex: I am a waitor, and would like to ask the customers what they would like to eat, but I wan't it to be in an alert window. I'll add the buttons if you'll just tell me how to get this message to show up on someone elses screen instead of mine. "What would you like to eat today?" Heres the code I have tried and failed with:

alert(src("[src], What would you like to eat today?",,"Fish","Tacos"))