innerHTML中载入js的方法

jarod2008

A common AJAX technique is to return straight HTML and use theinnerHTML element attribute to insert it into the DOM. Unfortunately,JavaScript inserted into the DOM this way (inside a <script> tag)will not execute in all browsers.
I found this out when trying to implement a dynamically changing PlotKit graph on my companies intranet site. It worked in Firefox (of course) and IE was coaxed into working be using the DEFER attribute.But the best Safari could do was leave a big blank space where mybeautiful graph should be. Even though there was probably only oneother employee that used Safari, I knew there was no way this was goingto stand. There must be a solution, right?
Some googling turned up this posting,where the problem was solved using a combination of cloneNode(),innerHTML and appendChild(). Fancy. It works with Opera and IE, but not with Safari.
Then, my eureka moment came. I replaced the <script> tag inthe RPC with a <div class=”javacript”> tag, still keeping all thescript inside the <div>. Next, I added .javascript { display: none; } to the style sheet and did some jQuery magic:
$('#ajaxLoading').ajaxStop(function() {
$('.javascript').each(function() {
eval($(this).text());
});
});
This simple function runs every time an AJAX call is completed anduses eval() to manually run the JavaScript. It’s ugly, it’s probablyviolating some sort of standard, but guess what? It works in Safari.