function mm_clickitem(a)
{
	var id = a.id;
	if (id)
		createCookie('mm_clickitem', id, 30);
}
ie ?  window.attachEvent('onload', mainmenu_init) : window.addEventListener('load', mainmenu_init, false);
function mainmenu_init()
{
	var id = readCookie('mm_clickitem');
	if (id)
	{
		id = $(id);
		if (id)
			id.className = 'active';
	}
}
var mon_lop = 
{
	hover: function(li)
	{
		li = $(li);
		var ul = li.select('ul');
		if (ul.length > 0)
			ul[0].show();
	},
	out: function(li)
	{
		li = $(li);
		var ul = li.select('ul');
		if (ul.length > 0)
			ul[0].hide();
	}
}
var treeview = 
{
	click: function(a)
	{
		a = $(a);
		var ul = a.next();
		if (ul)
		{
			if (ul.style.display == 'none')
				ul.style.display = 'block'
			else
				ul.style.display = 'none'
		}
	}
}

function initAjax()
{
	if (typeof(Sys) == 'undefined') return;
	if (typeof(disablefilter) != 'undefined' && disablefilter) return;
	Sys.WebForms.PageRequestManager.getInstance().add_beginRequest(ajax_BeginRequestHandler);
    Sys.WebForms.PageRequestManager.getInstance().add_endRequest(ajax_EndRequestHandler);
}
ie ?  window.attachEvent('onload', initAjax) : window.addEventListener('load', initAjax, false);
function ajax_BeginRequestHandler(sender, args)
{    
	var filter = $('filter');
	filter.className = 'filter-active';
	filter.style.height = document.body.offsetHeight + 'px';
}
function ajax_EndRequestHandler(sender, args)
{
	$('filter').className = 'filter-inactive';
}
function openTrinhDoAdd()
{
	var classId = $('ctl00_ContentPlaceHolder1_Trinhdo_list1_LoginView1_cboClass').value;
	window.open('trinhdo_add.aspx?classId=' + classId,'_blank','width=360,height=200')
}