function toggleLev1Div(nDivIdx){
		if ('block' == faqLev1[nDivIdx].style.display){
			faqLev1[nDivIdx].style.display = 'none';
		} else {
			faqLev1[nDivIdx].style.display = 'block';
		}
	}

	function toggleLev2Div(){
		var o = event.srcElement;

		while ("TBODY" != o.parentElement.tagName){
			o = o.parentElement;
		}

		o = o.nextSibling;

		if ('block' == o.style.display){
			o.style.display = 'none';
		} else {
			o.style.display = 'block';
		}
	}

	function openMail(){
		window.open("http://210.101.84.183/support/formMail.html", "mail_win", "top=0,left=0,width=520,height=307,toolbar=0,scrollbars=0,status=0");
	}