Highlight selected text matches on page (jQuery)

highlight.js

//Note:
//Requires jQuery! Also, you need to define a CSS class for .highlight
//Something like: .highlight{background-color: #ff96da;}

function getSelectionText() { //Thanks https://stackoverflow.com/a/5379408
	var text = "";
	if (window.getSelection) {
		text = window.getSelection().toString();
	} else if (document.selection && document.selection.type != "Control") {
		text = document.selection.createRange().text;
	}
	return text;
}

$("body").click(function(){
	$('.highlight').contents().unwrap();
	var text = getSelectionText();
	if(text != ""){
		var bod = $("pre").html();
		var regex = new RegExp(text, 'g');
		var modBod = bod.replace(regex, "<span class='highlight'>" + text + "</span>");
		$("pre").html(modBod);
	}
});