PreSaveAction function not working in infopath 2010 form

Question

Below script is working fine in sharepoint default form while submit form but not in infopath form.

<script src="/images/prototype.js" type="text/javascript"></script>
<script src="images/SPUtility.js" type="text/javascript"></script>
<script type="text/javascript">

function PreSaveAction()
{
    if(my condition)
     return true;
    else
     return false;      
}

How to prevent submit in infopath form if my condition is false?

Thanks in Advance.

Answer 1

Please ask one question per post... Both are really duplicates to already asked and answered before questions

Infopath 2010 supports code-behind development only in C#.NET or VB.NET (2.0 or 2005), after installing VSTA (Visual Studio Tools for Applications) as part of Microsoft Office setup and except Sharepoint List Forms in which code-behind is not supported at all by Infopath. Javascript is not supported since Infopath 2003.

If to speak about usage of published Infopath forms as webparts in Infopath Web Part Pages, please check this answer.
And if to call external javascript from Infopath form, using NotifyHost, check msdn series of article: "Open a SharePoint Modal Dialog from an InfoPath Form: Part 1 of 5 (Vivek Soni)":

• Part 1, Part 2, Part 3, Part 4, Part 5

How to prevent submit in infopath form if my condition is false?

Please check this answer