Do any one know why that is not work in IE?

i use this javascript function (appendChild) in IE and it's work clearly i Fire Fox but on IE not work

Do any one know why that is not work in IE?windows vista home premium

IE is different and has different security etc.

Are you using IE6 or IE7?

Do any one know why that is not work in IE?ie tab internet explorer

What is this function? IE is mostly standard but it does have few non-standard scripting component in it replacing standard functions, example is the DOM event framework, Firefox followed standard to the letter but IE implemented only the objects and slapped on older IE4 style event framework on it.
I think the javascript version be the problem