The fact that you used innerHTML instead of value is perfectly understandable. At least you got the important part right.
...which now gives me a nice little box. I played around with the getElementById, I even researched it at w3schools.com (so that I would appear less scary when I ask for further help :-). I ended up with:
...but I think this is either wrong, or I am putting it in the wrong place (because it doesn't work).Code:document.getElementById("Numdays").innerHTML = days
Having said all of this, i'm actually starting to like the alert that you created. I've changed it a bit to read:
So it at least gives clients a hint as to how long their work will take.Code:alert("Your work will be completed within "+days+" days\nof payment confirmation\n\nPlease select OK to see your toal price");