var xmlhttp;

var thumb = 1;
//-----------------------------------------
function prev()
{
	if(thumb==1)
	{}
	else{
		document.getElementById("thumb"+thumb).style.display = 'none';
		thumb--;
		document.getElementById("thumb"+thumb).style.display = 'block';
	}	
}
function next(n)
{
	if(thumb>n)
	{}
	else{
		document.getElementById("thumb"+thumb).style.display = 'none';
		thumb++;
		document.getElementById("thumb"+thumb).style.display = 'block';
	}	
}
function show_image(url)
{
	document.getElementById("show_pictures").innerHTML = '<div align="center"><a href="'+url+'" title="sexy, sexy girl, japan girl, beautiful girl" target="_blank"><img src="'+url+'" height="400" border="0" /></a></div>';
}
function abc()
{
	xmlhttp=GetXmlHttpObject();
	if (xmlhttp==null)
  	{
  		alert ("Browser does not support HTTP Request");
  		return;
  	}
	var url="./mod/settingms.php";
	url=url+"?v="+str;
	url=url+"&id="+Math.random();
	xmlhttp.onreadystatechange=status_ms;
	xmlhttp.open("GET",url,true);
	xmlhttp.send(null);	
}
function newlesson()
{
	if (xmlhttp.readyState==4)
	{
		document.getElementById("danhsachbh").innerHTML=xmlhttp.responseText;
	}
}

function GetXmlHttpObject()
{
	if (window.XMLHttpRequest)
  	{
  	// code for IE7+, Firefox, Chrome, Opera, Safari
  		return new XMLHttpRequest();
  	}
	if (window.ActiveXObject)
  	{
  		// code for IE6, IE5
  		return new ActiveXObject("Microsoft.XMLHTTP");
  	}
	return null;
}