jQuery addClass example
Change class name on click in jQuery
by Sedbol
HTML
<textarea id="textField"></textarea>
<div id="hey" messag="Первый текст">Первый текст</div>
CSS
#hey{
cursor: pointer;
}
JavaScript
$('#hey').on('click', function () {
var name = $(this).attr('messag');
document.getElementById("textField").value=""+name+","+document.getElementById("textField").value;
});