Answered
What is wrong in this JavaScript code?

Please fix this error.
var Exp = 'totalexperience';
var Sup = 'totalsup';
var f = this.getField(Exp).value;
var a = this.getField(Sup).value;
if(f==0)||(a==0)
{
event.value=f+a;
}
Else if(f!=0)||(a!=0)
{
event.value=a/f*100;
}
