// JavaScript Document
<!--
function toggle1(submenu,imgButton) {

	if (document.getElementById(submenu).style.display == 'none') {
   		document.getElementById(submenu).style.display = 'block';
		document.getElementById(imgButton).src = 'http://www.twinaudiovideo.com/images/reviews/Reviews_1_close.jpg';
   	} else if (document.getElementById(submenu).style.display == 'block') {
   		document.getElementById(submenu).style.display = 'none';
		document.getElementById(imgButton).src = 'http://www.twinaudiovideo.com/images/reviews/Reviews_1_open.jpg';
	}
}

function toggle2(submenu,imgButton) {

	if (document.getElementById(submenu).style.display == 'none') {
   		document.getElementById(submenu).style.display = 'block';
		document.getElementById(imgButton).src = 'http://www.twinaudiovideo.com/images/reviews/Reviews_2_close.jpg';
   	} else if (document.getElementById(submenu).style.display == 'block') {
   		document.getElementById(submenu).style.display = 'none';
		document.getElementById(imgButton).src = 'http://www.twinaudiovideo.com/images/reviews/Reviews_2_open.jpg';
	}
}
//-->