function get_ajax_object()
{
	var ajax_object;
	
	try
	{
		ajax_object = new ActiveXObject("Msxml2.XMLHTTP");
	}
	catch (e)
	{
		try
		{
			ajax_object = new ActiveXObject("Microsoft.XMLHTTP");
		}
		catch (E)
		{
			ajax_object = false;
		}
	}
	
	if (!ajax_object && typeof XMLHttpRequest != 'undefined')
	{
		ajax_object = new XMLHttpRequest();
	}
	
	return ajax_object;
}



function newwindow(href, params)
{
	window.open(href, "_blank", params);
	return false;
}


function selfwindow(href)
{
	window.open(href, "_self");
	return false;
}


function selfwindowconfirm(href, confirmstr)
{
	if(window.confirm(confirmstr))
		window.open(href, "_self");
	return false;
}