function display()
{
	this.hello = function() {
		updateDivContent('asdf', 'a', '');
	}
	
	


}
ObjDisplay = new display();

function updateDivContent(div_id, action, params){
	new Ajax('AJAX.php', {
		method: 'POST',
		update: $(div_id),
		data: 'action='+action+'&'+params
	}).request();
}