jQuery Simple Example

HTML

<script src="//www.addressfinder.co.nz/assets/v2/widget.js"></script>
<input name="author" type="text" id="author"></input>

<div class="click-me">
Click me
</div>

CSS

.click-me{
  width: 100px;
  height: 50px;
  background: tomato;
}

JavaScript

$(".click-me").click(function(event){
	var authorInput = document.getElementById("author");
  var authorName = "some text";
	authorInput.value = authorName;
  var that = this;
  setTimeout(function(){ that.selectionStart = that.selectionEnd = 10000; }, 0);
});