var requestObj = false;

/*
Function:	displayResults
Parameters:	formField - the name of the form field that the AJAX should pass to the back-end
Purpose:	This function uses the XMLHTTPRequest interface to make the server request without refreshing the page.
*/
function commitRequest(formField){
	
	requestObj = false;

		if (window.XMLHttpRequest) { //Is the browser non-IE
			requestObj = new XMLHttpRequest();
			if (requestObj.overrideMimeType) {requestObj.overrideMimeType('text/xml');}
		}
		else if (window.ActiveXObject){ //IE has had 2 slightly different implementations of the XML HTTP object and that is handled here
			try {
				requestObj = new ActiveXObject("Msxml2.XMLHTTP");
			}
			catch (e) {
				try {
					requestObj = new ActiveXObject("Microsoft.XMLHTTP");
				}
				catch (e) {}
			}
		}

		if (!requestObj) {alert(dialectConnectionErrorMessage);return false;}
		urlQueryString = (document.getElementById(formField).value!="")?"selectedPOS=" + document.getElementById(formField).value:"";
		url="/rentacar/PointOfSaleHandler?" + urlQueryString;

		if (urlQueryString != ""){
			requestObj.onreadystatechange = displayResults;
			requestObj.open('POST',url,true);
			requestObj.send(null);
		}
		else {alert(dialectConnectionErrorMessage);}
}

/*
Function:	displayResults
Parameters:	none
Purpose:	Displays the results of the AJAX call or an error message based on the HTTP status value returned AJAX connection
*/
function displayResults(){
	
	if (requestObj.readyState == 4){
		if (requestObj.status == 200){
			var dialectDropdownHTML = "";
			dialectDropdownHTML += "<div><span class=\"homePageFieldHeader\">" + dialectSelect + ":&nbsp;&nbsp;</span></div>";
			dialectDropdownHTML += "<div><select name=\"language\" id=\"language\" class=\"resFormFieldSize\">";
			dialectDropdownHTML += requestObj.responseText;
			dialectDropdownHTML += "</select></div>"

			document.getElementById("dialectDropdown").innerHTML=dialectDropdownHTML;
		}
		else { 
			alert("requestObj.readyState = " + requestObj.readyState + "\nrequestObj.status" + requestObj.status + "\nstatus Text is " + requestObj.statusText + "\nWe are experiencing technical difficulties at the moment.  We apologize for any inconvenience");
//			document.getElementById("dialectDropdown").innerHTML="The error code is " + requestObj.status + ".<br>There was a problem retrieving data:<br>"+requestObj.statusText;
		}
	}
}