// JavaScript Document
function changeImage(container) { // check form function
	container_id = container;
	document.getElementById(container_id).innerHTML = '<img src="images/loading.gif" />'; // set loading image
	var today = new Date()
	var serial = today.getTime();
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null) { // browser not supported
	
		alert ("Browser does not support HTTP Request") // send alert to user
		return // exit function load form
	} // end if browser not supported
	
	var url= "change_security_image.rpc.php";
	url=url+"?load_new_image";
	url=url+"&serial"+serial;
	xmlHttp.onreadystatechange=imageStateChanged // set state changed function
	xmlHttp.open("GET", url, true);
	xmlHttp.send(null);
} // end function check form

function imageStateChanged() { // state changed function
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete") { // http transfer complete
		var result = xmlHttp.responseText;
		document.getElementById(container_id).innerHTML = result; // send html to element
	} // end if http transfer complete
}