Help me optimize the if else in JavaScript (jQuery)

Question

Is it possible to somehow shorten this code:

var i=GetStringFromServer('/url');
if(i){
   $('#Div1').hide();
   $('#Div2').show();
}
else{
   $('#Div1).show();
   $('#Div2).hide();
}

In C# I'd simply do this:

bool smth=GetBool();
_el1.Visible=smth;
_el2.Visible=!smth;

Is it possible to mimick the logic in JavaScript?

UPDATE: Thank you guys for nice answers, I peeked at toggle myself before asking but what confused was the method signature:

toggle(fn1, fn2);

I thought that function expected some tricky callbacks but apparently it's flexible enough to handle both plain booleans and callbacks.

UPDATE2: Thanks to Robert's and Fabien's comments, the true answer was finally found. Toggle will always make elements visible or invisible based on evaluating the argument to bool.

Answer 1

$('#Div1, #Div2').toggle(i);