function urlGetSync(url)
{
    // alert("url = " + url);
    
    var xmlHttp;
    try {
         // Firefox, Opera 8.0+, Safari
        xmlHttp=new XMLHttpRequest();
    }
    catch (e) {
        // Internet Explorer
        try {
           xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
        }
        catch (e) {
            try {
		xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
            }
            catch (e) {
		alert("Your browser does not support AJAX!");
		return false;
            }
        }
    }
    
    xmlHttp.open("GET",url,false);
    xmlHttp.send(null);

    // alert("response = '" + xmlHttp.responseText + "'");
    
    return xmlHttp.responseText;
}

function urlPostSync(url,params)
{
    // alert("url = " + url);
    
    var xmlHttp;
    try {
         // Firefox, Opera 8.0+, Safari
        xmlHttp=new XMLHttpRequest();
    }
    catch (e) {
        // Internet Explorer
        try {
           xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
        }
        catch (e) {
            try {
		xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
            }
            catch (e) {
		alert("Your browser does not support AJAX!");
		return false;
            }
        }
    }
    
    xmlHttp.open("POST",url,false);

    xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
    xmlHttp.setRequestHeader("Content-length", params.length);
    xmlHttp.setRequestHeader("Connection", "close");

    xmlHttp.send(params);

    // alert("response = '" + xmlHttp.responseText + "'");
    
    return xmlHttp.responseText;
}