honk/views/honkform.html

<p id="honkformhost">
<button onclick="showhonkform(); return false"><a href="/newhonk">it's honking time</a></button>
<form id="honkform" action="/honk" method="POST" enctype="multipart/form-data" style="display: none">
<p>
in reply to: <input type="text" name="rid" id="ridinput" value="" autocomplete=off>
<input type="hidden" name="CSRF" value="{{ .HonkCSRF }}">
<p>
<label id="donker">attach: <input onchange="updatedonker();" type="file" name="donk"><span></span></label>
<p>
<textarea name="noise" id="honknoise">{{ .Noise }}</textarea>
<p>
<input type="submit" value="it's gonna be honked">
<input type="submit" name="preview" value="preview">
</form>
<script>
function showhonkform(elem, rid, hname) {
	var form = document.getElementById("honkform")
	form.style = "display: block"
	if (elem) {
		form.remove()
		elem.parentElement.insertAdjacentElement('beforebegin', form)
	} else {
		elem = document.getElementById("honkformhost")
		elem.insertAdjacentElement('afterend', form)
	}
	var ridinput = document.getElementById("ridinput")
	var honknoise = document.getElementById("honknoise")
	if (rid) {
		ridinput.value = rid
		honknoise.value = "@" + hname + " "
	}
	document.getElementById("honknoise").focus()
}
function updatedonker() {
	var el = document.getElementById("donker")
	el.children[1].textContent = el.children[0].value.slice(-20)
}
</script>