$w.onReady(function () {
$w('#newYorkCollapseButton').onClick(() => {
toggleBox($w('#newYorkCollapsibleBox'), $w('#newYorkPlusSign'), $w('#newYorkMinusSign'));
});
$w('#tokyoCollapseButton').onClick(() => {
toggleBox($w('#tokyoCollapsibleBox'), $w('#tokyoPlusSign'), $w('#tokyoMinusSign'));
});
$w('#parisCollapseButton').onClick(() => {
toggleBox($w('#parisCollapsibleBox'), $w('#parisPlusSign'), $w('#parisMinusSign'));
});
});
function toggleBox(boxElement, plusSign, minusSign) {
const isCollapsed = boxElement.collapsed;
if (isCollapsed) {
plusSign.hide();
minusSign.show();
boxElement.expand();
} else {
minusSign.hide();
plusSign.show();
boxElement.collapse();
}
}