spee.ch/views/partials/publishForm.handlebars

<div class="row" id="file-selection-area">
    <div id="drop-zone" ondrop="drop_handler(event);" ondragover="dragover_handler(event);" ondragend="dragend_handler(event)">
        <div class="row">
            <p>Drag and drop your file here, or choose your file below.</p>
            <div class="info-message info-message--failure" id="input-error-file-selection" hidden="true"></div>
        </div>
        <div class="row">
            <input type="file" id="siofu_input" name="file" accept="video/*,image/*" onchange="previewAndStageFile(event.target.files[0])" enctype="multipart/form-data"/>
        </div>
    </div>
</div>
<div class="row">
    <div class="column column--5" id="asset-preview-holder"></div>
    <div class="column column--5" id="publish-active-area">
        {{> publishForm-Channel}}
        {{> publishForm-Url}}
        {{> publishForm-Details}}
        <div class="input-error" id="input-error-publish-submit" hidden="true"></div>
        <button id="publish-submit" onclick="publishSelectedImage(event)">Publish</button>
        <button onclick="resetPublishArea()">Reset</button>
    </div>
</div>

<script type="text/javascript" >
	function resetPublishArea (){
		// reset file selection area
		document.getElementById('file-selection-area').innerHTML = `<div id="drop-zone" ondrop="drop_handler(event);" ondragover="dragover_handler(event);" ondragend="dragend_handler(event)">
			<p>Drag and drop your file here, or choose your file below.</p>
			<div class="info-message info-message--failure" id="input-error-file-selection" hidden="true"></div>
			<input type="file" id="siofu_input" name="file" accept="video/*,image/*" onchange="previewAndStageFile(event.target.files[0])" enctype="multipart/form-data"/>
		</div>
		<div id="asset-preview-holder"></div>`;
		// reset inputs
		document.getElementById('claim-name-input').value = '';
		document.getElementById('publish-title').value = '';
		document.getElementById('publish-description').value = '';
		document.getElementById('publish-nsfw').checked = false;
		// remove staged files
		stagedFiles = null;
		// clear any errors
		document.getElementById('input-error-file-selection').innerHTML = '';
		document.getElementById('input-error-claim-name').innerHTML = '';
		document.getElementById('input-error-publish-submit').innerHTML = '';
		document.getElementById('input-success-claim-name').hidden = true;
	}
</script>