js在IE中不能直接调用java吗?下面代码小弟我把!=改成==后异常,什么原因啊

js在IE中不能直接调用java吗?下面代码我把!=改成==后错误,什么原因啊..
if(navigator.javaEnabled()   &&   (navigator.appName   !=   'Microsoft   Internet   Explorer '))
                {
                                seventeenth   =   java.awt.Toolkit.getDefaultToolkit();
                                first2   =   java.net.InetAddress.getLocalHost();
                                second2   =   first2.getHostName();
                                fifth2   =   first2.getHostAddress();
                                alert( "Your   host   name   is   ' "   +   second2   +   " '\nYour   IP   address   is   "   +   fifth2);

                }
大意是不是显示主机名和ip,在IE下应该怎么弄啊...

[解决办法]
js在IE中不能直接调用java，要获取主机名和ip最好在java代码中实现。
[解决办法]
if(navigator.javaEnabled() && (navigator.appName != 'Microsoft Internet Explorer '))
{
<%
seventeenth = java.awt.Toolkit.getDefaultToolkit();
first2 = java.net.InetAddress.getLocalHost();
second2 = first2.getHostName();
fifth2 = first2.getHostAddress();
%>
alert( "Your host name is ' " + <%=second2%> + " '\nYour IP address is " + <%=fifth2%> );

}