function ajaxSubmit(method, target, asynchronous, variables_to_send) {
var req = null;
if(window.XMLHttpRequest) {
req = new XMLHttpRequest();
}
else {
if(window.ActiveXObject) {
req = new ActiveXObject("Microsoft.XMLHTTP");
}
}
req.onreadystatechange = function() {
if(req.readyState == 4) {
if(req.status == 200) {
var returned_value = req.responseText;
eval(returned_value);
}
else {
}
}
};
req.open(method, target, asynchronous);
if(method == 'POST') {
req.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
}
req.send(variables_to_send);
}