How do I get JavaScript created with document.write() to execute?
Question
I have a multi-frame layout. One of the frames contains a form, which I am submitting through XMLHttpRequest. Now when I use document.write() to rewrite the frame with the form, and the new page I am adding contains any javascript then the javascript is not exectuted in IE6?
For example:
document.write("<html><head><script>alert(1);</script></head><body>test</body></html>");
In the above case the page content is replaced with test but the alert() isn't executed. This works fine in Firefox.
What is a workaround to the above problem?
6 answers
solution1
1 2008-10-01 21:27:32
Instead of having the JS code out in the open, enclose it in a function (let's call it " doIt "). Your frame window (let's say it's name is "formFrame") has a parent window (even if it's not visible) in which you can execute JS code. Do the actual frame rewrite operation in that scope:
window.parent.rewriteFormFrame(theHtml);
Where rewriteFormFrame function in the parent window looks something like this:
function rewriteFormFrame(html) {
formFrame.document.body.innerHTML = html;
formFrame.doIt();
}
solution2
1 2008-09-16 05:47:38
Workaround is to programmatically add <script> blocks to head DOM element in JavaScript at Callback function or call eval() method. It's only way you can make this work in IE 6.
solution3
0 2009-10-15 23:57:30
您可以在body标签中使用onload属性（ <body onload="jsWrittenLoaded()"> ）。
solution4
0 2008-10-01 21:14:58
In short: You can't really do that. However JavaScript libraries such as jQuery provide functionality to do exactly that. If you depend on that, give jQuery a try.
solution5
0 2008-10-01 21:24:27
Eval and/or executing scripts dynamically is bad practice. Very bad practice. Very, very, very bad practice. I can't stress enough, how bad practice it is.
AKA.: Sounds like bad design. What problem are you trying to solve again?
solution6
0 2008-09-16 05:48:54
Another possible alternative is to use JSON, dynamically adding scripts references which will be automatically processed by browser.
Cheers.
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