您可以使用属性childNodes代替all.

在这里查看更多信息:
http://www.w3schools.com/Dom/dom_element.asp [

You could use the property childNodes instead of using all.

Have a look here fr more info:
http://www.w3schools.com/Dom/dom_element.asp[^]

Good luck!

document.getElementById(''elementId'') 

适用于所有浏览器.