可以用mutation-summary ,动态元素管家(code.google.com/p/mutation-summary)
<head>
...
<script type="text/javascript" src="mutation-summary.js">
</head>
...
<script type="text/javascript">
var observer = new MutationSummary({
callback: function(summaries){
summaries[0].added[0].focus();
observer.disconnect();
},
queries: [
{ "input#myID" },
]
});
</script>