function makeRequest(url,aid) 
{
    var http_request = false;
    if(window.ActiveXObject)
    { // Explorer
        try 
        {
            http_request = new ActiveXObject("Msxml2.XMLHTTP");
        } 
        catch (e) 
        {
            try 
            {
                http_request = new ActiveXObject("Microsoft.XMLHTTP");
            } 
            catch (e) {}
        }
    }
    else if(window.XMLHttpRequest) 
    { 
        http_request = new XMLHttpRequest();
        if (http_request.overrideMimeType) http_request.overrideMimeType('text/xml');

    } 
    if (!http_request) 
    {
        alert('Невозможно создать экземпляр класса XMLHTTP');
        return false;
    }
    //http_request.onreadystatechange = function() { alertContents(http_request,aid); };
    http_request.open('GET', url, true);
    http_request.send(null);
}

function In(param,aid)
{
    if(param) 
    {
    	if(param=="ok") document.getElementById(aid).contentWindow.document.body.innerHTML = param;
		else document.getElementById(aid).innerHTML = param; 
    }
}

function alertContents(http_request,aid) 
{
    //alert('123');
    if (http_request.readyState == 4) 
    {
        if(http_request.status == 200) 
        {
           alert(http_request.responseText);
           //In(http_request.responseText,aid);
        } 
        else 
        {
            alert('С запросом возникла проблема.');
        }
    }
}