function refresh(){
        var img = new Image();
        img.src = "./img.php?" + Math.random();
        //alert(document.getElementById('rer'));
        document.getElementById('rer').src = img.src;
        ///alert(document.getElementById('rer').src);
    }
	
	function doSubMenu(sub_id)
	{
		var sub = document.getElementById(sub_id);
		if (sub.style.display == 'none') sub.style.display = (window.navigator.userAgent.indexOf ("MSIE") > 0 ? 'block' : 'table-row');
		else sub.style.display = 'none';
	}