function createRequestObject(){
	var request_o; //declare the variable to hold the object.
	var browser = navigator.appName; //find the browser name
	if(browser == "Microsoft Internet Explorer"){
		/* Create the object using MSIE's method */
		request_o = new ActiveXObject("Microsoft.XMLHTTP");
	}else{
		/* Create the object using other browser's method */
		request_o = new XMLHttpRequest();
	}
	return request_o; //return the object
}

var http = createRequestObject(); 

function getListings(page,searchfilter){
	var url = "./results1.php";
	url = url + "?page=" + page + "&searchfilter=" + searchfilter;
	http.open('get', url);
	http.onreadystatechange = handleListings; 
	http.send(null);
}

function handleListings(){
	if(http.readyState == 4){
		var response = http.responseText;
		<!---document.getElementById('content1_results').innerHTML = response;
	}
}

function clearForm() {
	document.myForm1.searchfilter.value = "";
}