Javascript field tooltip

[Marcin Beczynski]

Hey,

I'm looking for a solution to implement tooltip for custom field already found a JS what could be used but not exactly know how to change it to be suitable for JS include the plugin. The same code should be able to work on Google Chrome console. 

Code what I used in the description.

<script type="text/javascript">
function showHelp() {
var listenersDiv = document.getElementById("NameOFCustomField");
if (listenersDiv.style.display == 'none') {
listenersDiv.style.display = '';
} else {
listenersDiv.style.display='none';
}
}
</script>
<a href="#" onclick="showHelp(); return false;"><img src="https://png.icons8.com/metro/50/000000/help.png" height="20" width="20"></a>
<div id="NameOFCustomField" style="display:none">
<<<<Description>>>
</div>