being submitted
	event.preventDefault();
}
var coll = document.getElementsByClassName("collapsible");
var i;
for(i = 0; i < coll.length; i++) {
	coll[i].addEventListener("click", function() {
		this.classList.toggle("active");
		var content = this.nextElementSibling;
		if(content.style.maxHeight) {
			content.style.maxHeight = null;
		} else {
			content.style.maxHeight = content.scrollHeight + "px";
		}
	});
}
</script>