var oldsubmenunr = '';

function leftmenudata( submenunr, pathnum )
{								
	var data = new Ajax.Request
	(           
		"ajax/leftmenudata.php",
		{                
			method: 'post',
			parameters: { subnr: submenunr, pathnr: pathnum },
			onLoading:  function( transport )
						{
							if (oldsubmenunr && oldsubmenunr != submenunr)
							{
								var i = 1;
								while (document.getElementById('marker_'+i))
								{
									document.getElementById('marker_'+i).style.visibility = 'hidden';
									document.getElementById('submenu_'+i).innerHTML = '';
									document.getElementById('submenu_'+i).style.display = 'none';
									i++;
								}
							}
     					},					
			onComplete: function ( transport, subnr )
						{									
							document.getElementById('marker_'+submenunr).style.visibility = 'visible';
							document.getElementById('submenu_'+submenunr).innerHTML = transport.responseText;						
							document.getElementById('submenu_'+submenunr).style.display = 'block';
							oldsubmenunr = submenunr;
						}
		}	
	);
}