Dividing two figures

[arabia]

I am making a website about the Apollo missions. In total, the apollo missions cost £12,450,887,792.68. I want a user to be able to enter their salary in one box, click on a button, and for a piece of script to return how many years it would take for them to save that amount of money based on their salary. Obviously, we're just talking about 12450887792.68 / salary = years, but I've never used Javascript b4, and so I'm not sure how to do it.

Thanks for any help you can offer.

David.

 

[xutopia]

here is a way you can do it :

<form name=&quot;myForm&quot;>
<input type=&quot;text&quot; name=&quot;salary&quot;>
<input type=&quot;button&quot; onclick=&quot;alert('It would have taken you ' + (12450887792.68 / document.myForm.salary.value) + ' years to save up for this mission.')&quot;>
</form> Gary

http://www.xutopia.com

Haran

 

[arabia]

Thank you for your kind assistance.

David.

 

[arabia]

This works great, thanks. Is there any way to have a form where there is an output onscreen rather than it coming up as an alert box?

 

[nvb]

Use an empty <INPUT TYPE=&quot;text&quot; ID=&quot;txtOut&quot;>, and in the onClick use:

onClick=&quot;document.getElementByID('txtOut').value='It would...

That should do the trick! Cheers,
Nico

 

[HellTel]

As it's an output, I would also make the text box read only,

<INPUT TYPE=&quot;text&quot; ID=&quot;txtOut&quot; readonly>