IE7 下的Ajax小问题

不知道我的IE有问题还是怎么了,这个方法就是不行..


JScript code:


function GetXmlHttpObj()
{
var XmlHttpObj = null;
try
{
/** 这个也不行
if(window.ActiveXObject)
{
for(var i = 6;i;i--)
{
try
{
if( i == 2 )
{
XmlHttpObj = new ActiveXObject( "Microsoft.XMLHTTP" );
}
else
{
XmlHttpObj = new ActiveXObject( "Msxml2.XMLHTTP." + i + ".0" );
}
XmlHttpObj.setRequestHeader("Content-Type","text/xml");
XmlHttpObj.setRequestHeader("Content-Type","utf-8");
break;
}
catch(e)
{}
}
}
else if( window.XMLHttpRequest )
{
XmlHttpObj = new XMLHttpRequest();
if (XmlHttpObj.overrideMimeType)
{
XmlHttpObj.overrideMimeType('text/xml');
}
}
**/
if(window.ActiveXObject){
var ieArr=["Msxml2.XMLHTTP.6.0","Msxml2.XMLHTTP.3.0", "Msxml2.XMLHT