Math addition

[fergy1]

I have 6 fields for company ownership. They are decimal fields since an owner can have a fractional ownership of a company. However all 6 fields need to add up to 100 if they dont i need to alert them with my validate script. I have included some alert script i am using already so you can see the style i have. If you can help that would be great!

if (theForm.Pres.value + theForm.Vice_Pres.value + theForm.Sec.value + theForm.chairman.value + theForm.Other.value != 100)
  {
    alert("Please be sure the ownershp adds to 100 on the \"Sock Owned\" field.");
    return (false);
  }

 

[tsuji]

Compare result of operation on floating point numbers to an integer is a risky buisiness. A more reliable way is to make them each a number of fixed decimal points then compare.
[tt]
if (theForm.Pres.value.toFixed(3) + theForm.Vice_Pres.value.toFixed(3) + theForm.Sec.value.toFixed(3) + theForm.chairman.value.toFixed(3) + theForm.Other.value.toFixed(3) != 100.000)
[/tt]
You have to make sure as a matter of course each of those values can convert to number.

 

[fergy1]

What happens if ther are null? Will i ignore those? Because not all those fields have to be completed. Just whaatever the do have has to equal 100

 

[tsuji]

They won't be null, just empty string which is fine.

 

[tsuji]

I see what you meant. You have to convert number string to number and empty to 0 by each applying:
[tt] var x=theForm.Sec.value
x=(x=="")?0arseFloat(x).toFixed(3)
[/tt]
...etc. for each of them. Sorry for overlooking that part.