In the use of Ajax applications protype.js, there will be such a problem: as long as called Ajax.Request, and then point to the right page, view the "Properties" on the pop-up "IE stopped working" dialog box, and then forced to reload the page, the solution is in your call to the Ajax application protype.js page, add the following passage: <meta http-equiv="x-ua-compatible" content="ie=7" /> the role of these words is to make ie6 or above versions.

See code: 

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta http-equiv="x-ua-compatible" content="ie=7" />
<title>XXXX</title>

In this way, the problem basically ok a!