Because not all [[w c:internet:World Wide Web|web]] users use the same [[w c:internet:browser|browser]], making pages comprehensible for all (or at least the most popular) browsers is an important goal for web developers. This goal is known as "cross-browser compatibility," and its long-term solution is ECMAScript, the standard for JavaScript. c:code:implementation|implementors]] do not always comply with standards. In such a case, a larger [[w