function xmlhttpPost(strURL,formid) {
    var xmlHttpReq = false;
    var self = this;
    // Mozilla/Safari
    if (window.XMLHttpRequest) {
        self.xmlHttpReq = new XMLHttpRequest();
    }
    // IE
    else if (window.ActiveXObject) {
        self.xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP");
    }
    self.xmlHttpReq.open('POST', strURL, true);
    self.xmlHttpReq.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
    self.xmlHttpReq.onreadystatechange = function() {
        if (self.xmlHttpReq.readyState == 4) {
            updatepage(self.xmlHttpReq.responseText,formid);
        }
    }
    self.xmlHttpReq.send(getquerystring(formid));
}

function getquerystring(id) {
    var form = document.getElementById(id); qstr = '';
	for ( i=0;i<form.length;i++ )
		{ qstr += form.elements[i].name + '=' + escape(form.elements[i].value) + '&'; }
    return qstr;
}

function updatepage(txt,id) {
	document.getElementById("resultSection").innerHTML = txt;
	if ( txt.indexOf('Your message has been sent') > -1 )
		{ document.forms[id].style.display='none'; }
}