var request;

        function loadXML(url)
        {


            if(window.XMLHttpRequest)
            {
                        request = new XMLHttpRequest();
            }

            if(window.ActiveXObject) {
                request = new ActiveXObject("Msxml2.XMLHTTP");
            }

                if(request)
                {
                        request.onreadystatechange = function()
                        {
                                if (request.readyState == 4)
                                {
                                        if (request.status == 200)
                                        {
                                                hideScreen("sendingEmail");
                                                displayScreen("confirmation");
                                        }
                                };
                        }

                        request.open("POST", url, true);
                        request.setRequestHeader("Content-Type","application/x-www-form-urlencoded; charset=UTF-8");
                        request.send("contactName=" + getTextFieldValue('contactName') + "&contactEmail=" +  getTextFieldValue('contactEmail')  + "&contactMsg="  + getTextFieldValue('contactMsg') + "&siteID=3776&visitorID="  + getTextFieldValue('VisitorID') + "&sessionID=" + getTextFieldValue('SessionID') );
                }
        }



        function displayScreen(elementID)
        {
                screens = document.getElementById(elementID)
                screens.style.display = 'block';
        }

        function hideScreen(elementID)
        {
                screens = document.getElementById(elementID)
                screens.style.display = 'none';
        }

        function getTextFieldValue(elementID)
        {
                temps = document.getElementById(elementID);
                return temps.value;

        }
        
	function contactUs()
        {

                //hide form
                hideScreen("displayForm");

                //display sending email screen
                displayScreen("sendingEmail");

                loadXML("sendEmail.php")

        }