var request;
if(window.XMLHttpRequest){
request=new XMLHttpRequest;//IE7,chrome,firefox,safari,opera
}else{
request=new ActiveXObject("Microsoft.XMLHttp");//IE5,IE6
}
var request;
if(window.XMLHttpRequest){
request=new XMLHttpRequest;//IE7,chrome,firefox,safari,opera
}else{
request=new ActiveXObject("Microsoft.XMLHttp");//IE5,IE6
}
本文标题：ajax兼容IE5，IE6
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