function addLoadEventV(func)	{
	var oldload = window.onload;
	if (typeof window.onload != 'function')	{
		window.onload = func;
	}
	else	{
		window.onload = function()	{
			oldload();
			func();
			}
	}
}	
function addEventV() {
	var ul = document.getElementById('vietvbb_topstats_t');
	var li = ul.getElementsByTagName('li');
	for (i=0; i < li.length; i++)	{
		li[i].onmouseover = function()	{
			viewTabV(this);			
			}
	}
	var select = document.getElementById('vietvbb_topstats_s');
	select.onchange= function()	{
		viewMenuV(this.value);
		}
	select.getElementsByTagName('option')[0].selected='selected';
}
function viewTabV(a) {
	var id = a.id;
	document.getElementById('vietvbb_topstats_t1_content').style.display='none';
	if(document.getElementById('vietvbb_topstats_t2_content'))
		document.getElementById('vietvbb_topstats_t2_content').style.display='none';
	if(document.getElementById('vietvbb_topstats_t3_content'))
		document.getElementById('vietvbb_topstats_t3_content').style.display='none';
	if(document.getElementById('vietvbb_topstats_t4_content'))
		document.getElementById('vietvbb_topstats_t4_content').style.display='none';

	document.getElementById(id + '_content').style.display='block';

	document.getElementById('vietvbb_topstats_t1').className='';
	if (document.getElementById('vietvbb_topstats_t2'))
		document.getElementById('vietvbb_topstats_t2').className='';
	if (document.getElementById('vietvbb_topstats_t3'))
		document.getElementById('vietvbb_topstats_t3').className='';
	if (document.getElementById('vietvbb_topstats_t4'))
		document.getElementById('vietvbb_topstats_t4').className='';

	document.getElementById(id).className='current';
}

function viewMenuV(a) {
	document.getElementById('vietvbb_topstats_s1_content').style.display='none';
	if(document.getElementById('vietvbb_topstats_s2_content'))
		document.getElementById('vietvbb_topstats_s2_content').style.display='none';
	if(document.getElementById('vietvbb_topstats_s3_content'))
		document.getElementById('vietvbb_topstats_s3_content').style.display='none';
	if(document.getElementById('vietvbb_topstats_s4_content'))
		document.getElementById('vietvbb_topstats_s4_content').style.display='none';
	if(document.getElementById('vietvbb_topstats_s5_content'))
		document.getElementById('vietvbb_topstats_s5_content').style.display='none';
	if(document.getElementById('vietvbb_topstats_s6_content'))
		document.getElementById('vietvbb_topstats_s6_content').style.display='none';
	if(document.getElementById('vietvbb_topstats_s7_content'))
		document.getElementById('vietvbb_topstats_s7_content').style.display='none';
	if(document.getElementById('vietvbb_topstats_s8_content'))
		document.getElementById('vietvbb_topstats_s8_content').style.display='none';

	document.getElementById('vietvbb_topstats_s' + a + '_content').style.display='block';
}
addLoadEventV(addEventV);