JavaScript Syntax Error

I'm just trying to create a mailDoc on Mouse Up for a submit button and I'm encountering a syntax error:

var sendForm = app.alert("Are you ready to submit to " + ProgramManager + "?",2,2,"Program Manager Submission");

if(sendForm) == 4) {
this.mailDoc({bUI:true,cTo:ProgramManagerEmail,cSubject:"Incident Report Submitted",cMsg:"A new Incident Report has been submitted.\n Please sign it and return it to the sender."});
}
else
app.alert("Please continue with the form");

I'm getting syntax error 3: at line 4. I'm hitting a wall, so I'm open to suggestions. ProgramManagerEmail is a variable that is set from a drop-down to select a user. That populates an email address in ProgramManagerEmail.

Thank you,

~ David