// Start XmlHttp Object

function uzXmlHttp()
{
			var xmlhttp = false;
			try
			{
						xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
			}
			catch(e)
			{
						try
						{
								xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
						}
						catch(e)
						{
								xmlhttp = false;
						}
			}
		 
			if(!xmlhttp && document.createElement)
			{
					xmlhttp = new XMLHttpRequest();
			}
		
			return xmlhttp;
}
// End XmlHttp Object

function form_session_clear()
{
	var url = 'clear_session.php';
	
	xmlhttp = uzXmlHttp();
	xmlhttp.open("POST", url, false);
	xmlhttp.setRequestHeader( 'Content-Type', 'application/x-www-form-urlencoded' );
	xmlhttp.send();
}