//ajax
var request = false;
try 
{
	request = new XMLHttpRequest();
} 
catch (trymicrosoft) 
{
	try 
	{
		request = new ActiveXObject("Msxml2.XMLHTTP");
	} 
	catch (othermicrosoft) 
	{
		try 
		{
			request = new ActiveXObject("Microsoft.XMLHTTP");
		} 
		catch (failed) 
		{
			request = false;
		}  
	}
}
function loader_show(obj)
{
	var img = document.createElement('img');
	img.src = '/images/ajax_loader.gif';
	img.alt = 'Пожалуйста подождите';
	img.id = 'loader';
	//span = document.createElement('span');
	//span.innerHTML = 'Идет загрузка... ';
	//span.appendChild(img);
	
	obj.appendChild(img);
}
function loader_hide()
{
	var loader = document.getElementById('loader');
	loader.parentNode.removeChild(loader);
}