如何在单独的框架中打开ajax请求？

Okay, I have this code:

好的,我有这个代码:

 <script language="javascript" type="text/javascript">
<!--

function requestPage(page) {

    var request = false;

    try {
        request = new XMLHttpRequest();
    } catch (e) {
        try{
            request = new ActiveXObject("Msxml2.XMLHTTP");
        } catch (e) {
            try{
                request = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {
            alert("Unable to complete your request.");
            return false;
            }
        }
    }

    request.onreadystatechange = function() {
        if(request.readyState == 4) {
            if(request.status == 200) {    
                document.getElementById('content').innerHTML = request.responseText;
            }
        }
    }

    request.open("GET", "include.php?page=" + page, true);
    request.send(null);
}

//-->
</script>
 <script