var req;
var reqTimeout;
 
function RemoteRequest(url) {
    req = null;

    ClientResponseWait();	

    if (window.XMLHttpRequest) {
        try {
            req = new XMLHttpRequest();
        } catch (e){}
    } else if (window.ActiveXObject) {
        try {
            req = new ActiveXObject('Msxml2.XMLHTTP');
        } catch (e){
            try {
                req = new ActiveXObject('Microsoft.XMLHTTP');
            } catch (e){}
        }
    }
 
    if (req) {
        req.onreadystatechange = ResponseAnswer;

        req.open("GET", url, true);

	//if cache is not required:
	//req.setRequestHeader("If-Modified-Since", "Sat, 1 Jan 2000 00:00:00 GMT");
        req.send(null);
        reqTimeout = setTimeout("req.abort();", 5000);
    } 
}
 
function ResponseAnswer() {
    
    result = null;
	
    if (req.readyState == 4) {
        clearTimeout(reqTimeout);
        if (req.status == 200) {
            result=req.responseText;
        } 
    }  

    ClientAction(result);
}