Hi,
You can also do as like below... In this way, your both functions should call and if both functions return true then it will return true else return false.
<input type="button"
onclick="var valFunc1 = func1(); var valFunc2 = func2(); if(valFunc1 == true && valFunc2 ==true) {return true;} else{return false;}"
value="Call2Functions" />
Thank you, Vishal Patel