/** SET MAX LENGTH IN TEXTAREA **/
	function ismaxlength(obj)
	{
		var mlength=obj.getAttribute? parseInt(obj.getAttribute("maxlength")) : ""
		if (obj.getAttribute && obj.value.length>mlength)
		obj.value=obj.value.substring(0,mlength)
	}
	
	var t;
	
	function startTimer()
	{
		t=setTimeout("document.location='login.php?op=dologout'", 1800000);
		//t=setTimeout("document.location='login.php?op=dologout'",900000);
	}

	function stopTimer()
	{
		clearTimeout(t);
	}