function getHTTPObject() {   
    if (window.ActiveXObject)        
        return new ActiveXObject("Microsoft.XMLHTTP");   
	else if (window.XMLHttpRequest)        
		return new XMLHttpRequest();   
	else {      
		alert("Your browser does not support AJAX.");      
		return null;   
	}
}

function clearTextBox(element) {
	element.value = '';
}