html encode div
HTML
<div id="encode_me"><div>test</div></div>
JavaScript
my_value = document.getElementById("encode_me").innerHTML;
my_value = $('<div/>').text(my_value).html()
$('div').text(my_value);
<div id="encode_me"><div>test</div></div>
my_value = document.getElementById("encode_me").innerHTML;
my_value = $('<div/>').text(my_value).html()
$('div').text(my_value);