页面接受键盘的回车事件
在页面的<html></html>外
<script type="text/javascript">
document.onkeydown=Document_OnKeyDown;
function Document_OnKeyDown(event){
if(!event){
event=window .event;
}
var keyCode=(window.navigator.appName=="Microsoft Internet Explorer")?event.keyCode:event .which;
if (keyCode ==13){
DoSomething();
}
}
</script>
