function createRequestObject()
{	var request_o; 
	var browser = navigator.appName; 
	if(browser == "Microsoft Internet Explorer")
		request_o = new ActiveXObject("Microsoft.XMLHTTP");
	else		
		request_o = new XMLHttpRequest();	
	return request_o; 
	
}
var http = createRequestObject(); 

function ajaxCityAction(val)
{	
	passingUrl='http://busneeds.com/ajaxCityAction.php?val='+val+"&sid="+Math.random();
	http.open('get', passingUrl);
	http.onreadystatechange = handleDelete;
	http.send(null);	
}
function handleDelete()
{	
	if(http.readyState == 4)
	{	
		var response = http.responseText;	
		document.getElementById('city_div').innerHTML = response;
	}
}