跨域表单提交状态的变相判断代码_javascript技巧

<script> <BR>document.testform.onsubmit = function () { <BR>document.testform.submitbtn.disabled = true; <BR>submitMonitor(); <br><br>} <BR>function submitMonitor () { <BR>try{ <BR>var hash = document.getElementById('testiframe').contentWindow.location.hash; <BR>setTimeout(submitMonitor,100); <BR>} catch (e) { <BR>document.getElementById('testiframe').src = "about:blank"; <BR>document.testform.submitbtn.disabled = false; <BR>} <BR>} <BR></script>