var activeSubmenu = 0;
var contents = "";
function toggleSubmenu(menuNo) {
	if (activeSubmenu != 0 && activeSubmenu != menuNo) {
		$("ul#menu" + activeSubmenu).slideToggle("medium");

		if (activeSubmenu == 2)
		{
			if ($("img#mic").length != 0)
			{
				$("img#mic").attr("src", "images/mic.jpg");
			}
			if ($("table#layout td#content").length != 0)
			{
				$("table#layout td#content div").css("display", "block");
				$("table#layout td#content div#mic").css("display", "none");
			}
		}
	}				
	if (menuNo == activeSubmenu) {
		$("table#layout td#menu div").scrollTo(0, 0);
	} 
	if (menuNo == 2 && menuNo != activeSubmenu)
	{
		if ($("img#mic").length != 0)
		{
			$("img#mic").attr("src", "images/mic_system.jpg");
		}
		else {
			if ($("table#layout td#content").length != 0)
			{
				$("table#layout td#content div").css("display", "none");
				$("table#layout td#content div#mic").css("display", "block");
			}
		}
	}
	else {
		if (menuNo == 2)
		{
			if ($("img#mic").length != 0)
			{
				$("img#mic").attr("src", "images/mic.jpg");
			} 
			else {
				if ($("table#layout td#content").length != 0)
				{				
					$("table#layout td#content div").css("display", "block");
					$("table#layout td#content div#mic").css("display", "none");
				}
			}
		}
	}
	$("ul#menu" + menuNo).slideToggle("medium", function() {					
		if (activeSubmenu == menuNo) {
			activeSubmenu = 0;
		} else {
			activeSubmenu = menuNo;
		}	
	});								
}

$("img#btn1").click(function() { toggleSubmenu(1); });
$("img#btn2").click(function() { toggleSubmenu(2); });
$("img#btn3").click(function() { toggleSubmenu(3); });
$("img#btn4").click(function() { toggleSubmenu(4); });
$("img#btn5").click(function() { toggleSubmenu(5); });
$("img#btn6").click(function() { toggleSubmenu(6); });
$("img#btn7").click(function() { toggleSubmenu(7); });
$("img#btn8").click(function() { toggleSubmenu(8); });
$("img#btn9").click(function() { toggleSubmenu(9); });
$("img#btn10").click(function() { toggleSubmenu(10); });