// JavaScript Document

var http_request = false;
function makePOSTRequest(url, parameters) {
	http_request = false;
	if (window.XMLHttpRequest) { // Mozilla, Safari,...
		 http_request = new XMLHttpRequest();
		 if (http_request.overrideMimeType) {
			// set type accordingly to anticipated content type
				//http_request.overrideMimeType('text/xml');
				http_request.overrideMimeType('text/html');
		 }
	} else if (window.ActiveXObject) { // IE
		 try {
				http_request = new ActiveXObject("Msxml2.XMLHTTP");
		 } catch (e) {
				try {
					 http_request = new ActiveXObject("Microsoft.XMLHTTP");
				} catch (e) {}
		 }
	}
	if (!http_request) {
		 alert('Cannot create XMLHTTP instance');
		 return false;
	}
	
	http_request.onreadystatechange = alertContents;
	http_request.open('POST', url, true);
	http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	http_request.setRequestHeader("Content-length", parameters.length);
	http_request.setRequestHeader("Connection", "close");
	http_request.send(parameters);
}

// This encodes all of the stuff into a string then then passes it to the Ajax function above
function callbackGet(obj) {
	if ( (document.getElementById("callbackName").value == "" ) || (document.getElementById("callbackPhone").value == "") ) {
		document.getElementById("callbackError").innerHTML = "<br /><strong>Please complete both fields</strong>";
	}
	else {
		var poststr = "name=" + escape( document.getElementById("callbackName").value ) +
									"&phone=" + escape( document.getElementById("callbackPhone").value );
		if( document.getElementById("callbackReferrer") != null ) {
			var poststr = poststr + "&refferedBy=" + escape( document.getElementById("callbackReferrer").value ) +
									"&landedOn=" + escape( document.getElementById("callbackLand").value );
		}	
		makePOSTRequest('callbackProccess.php', poststr); 
	}
}



function alertContents() {
	if (http_request.readyState == 4) {
		 if (http_request.status == 200) {
				//alert(http_request.responseText);
				result = http_request.responseText;
				document.getElementById('callbackDiv').innerHTML = result;            
				//alert(result);
		 } else {
				alert('There was a problem with the request.');
		 }
	}
}