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function expandOne(n){
let val = $w(‘#dropdown1’).value;
// collapse all
$w(“#text30”).collapse();
$w(“#text31”).collapse();
$w(“#text32”).collapse();
$w(“#text33”).collapse();
$w(“#text34”).collapse();
$w(“#checkboxGroup3”).collapse();
$w(“#checkboxGroup4”).collapse();
$w(“#checkboxGroup5”).collapse();
$w(“#checkboxGroup6”).collapse();
$w(“#checkboxGroup7”).collapse();
// expand one section
$w(“#text”+n).expand();
$w(“#text”+n).scrollTo()
$w(“#checkboxGroup”+n).expand();

// handle checkbox 
//call (checkBox) function

if (val === “2 pizzas”) (expandOne(“30”));
if (val === “4 pizzas”) (expandOne(“31”));
if (val === “6 pizzas”) (expandOne(“32”));
if (val === “8 pizzas”) (expandOne(“33”));
if (val === “10 pizzas”) (expandOne(“34”));
if (val === “more10”) (expandOne(“34”));