JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://ajax.microsoft.com/ajax/jquery.validate/1.7/jquery.validate.js"></script>
<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/ui-lightness/jquery-ui.css">

JavaScript

var text = '#anything {behavior:url("csshover.htc");}'; //iam using " with url
text += "#anything {background:transparent url('img.png') no-repeat;}"; //iam using ' with url
text += "#anything {background-image:url('ok.jpg');}";


text = text.replace(/url\([^)]+\)/g, 'url("#")');

alert(text);