//Function to create an XMLHttp Object.
function getxmlhttp() {
	//Create a boolean variable to check for a valid microsoft active X instance.
	var xmlhttp = false;
	
	//Check if we are using internet explorer.
	try {
		//If the javascript version is greater than 5.
		xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
	} catch (e) {
		//If not, then use the older active x object.
		try {
			//If we are using internet explorer.
			xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
		} catch (E) {
			//Else we must be using a non-internet explorer browser.
			xmlhttp = false;
		}
	}
	
	//If we are using a non-internet explorer browser, create a javascript instance of the object.
	if (!xmlhttp && typeof XMLHttpRequest != 'undefined') {
		xmlhttp = new XMLHttpRequest();
	}
	
	return xmlhttp;
}

//Function to process an XMLHttpRequest.
function processajax(obj, serverPage) {
	//Get an XMLHttpRequest object for use.
	var theimg;
	xmlhttp = getxmlhttp ();
	xmlhttp.open("GET", serverPage);
	xmlhttp.onreadystatechange = function() {
		if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
			document.getElementById(obj).innerHTML = xmlhttp.responseText;
		}
	}
	xmlhttp.send(null);
}

function getPostAjaxResponse(serverPage, str) {
	xmlhttp = getxmlhttp();
	xmlhttp.open("POST", serverPage, true);
	xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8");
	
	xmlhttp.onreadystatechange = function() {
		if(xmlhttp.readyState == 4 && xmlhttp.status == 200) {
			return xmlhttp.responseText;
		}
	}
	xmlhttp.send(str);
}

function processPostAjax(obj, serverPage, str) {
	xmlhttp = getxmlhttp();
	xmlhttp.open("POST", serverPage, true);
	xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8");
	
	xmlhttp.onreadystatechange = function() {
		if(xmlhttp.readyState == 4 && xmlhttp.status == 200) {
			alert("HELLO " + serverPage);
			alert(xmlhttp.responseText);
			document.getElementById(obj).innerHTML = xmlhttp.responseText;
		}
	}
	xmlhttp.send(str);
}

function processAjaxIntoVal(obj, serverPage, overwrite) {
	//Get an XMLHttpRequest object for use.
	var theimg;
	xmlhttp = getxmlhttp ();
	xmlhttp.open("GET", serverPage);
	xmlhttp.onreadystatechange = function() {
		if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
			if(overwrite) {
				document.getElementById(obj).value = xmlhttp.responseText;
			} else {
				document.getElementById(obj).value += xmlhttp.responseText;
			}
		}
	}
	xmlhttp.send(null);
}