var req;
var which;


function touchURL(url) {

if (!browserOk()) {
return (false);
}

if (window.XMLHttpRequest) { // Non-IE browsers
req = new XMLHttpRequest();
req.onreadystatechange = processStateChangeDoNothing;
try {
req.open("GET", url, true);
} catch (e) {
// alert(e);
}
req.send(null);
} else if (window.ActiveXObject) { // IE
req = new ActiveXObject("Microsoft.XMLHTTP");
if (req) {
req.onreadystatechange = processStateChangeDoNothing;
req.open("GET", url, true);
req.send();
}
}
}

function processStateChangeDoNothing() {
if (req.readyState == 4) {   // Complete
// alert ('ready state');      // debug
}
}

function processStateChange() {
if (req.readyState == 4) { // Complete
// intentionally left out
/*
if (req.status == 200) { // OK response
document.getElementById("urlContent").innerHTML = req.responseText;
} else {
alert("Problem: " + req.statusText);
}
*/
}
}