var isIE = (navigator.appName == "Microsoft Internet Explorer");

function ChangeBgImage(menuID, menus, menucount)
{
	var Item = null;
	var ItemC = null;
	var ItemP = null;

	//set style of menu to default
	for (i=0;i<menuCount;++i)
	{
		Item = document.getElementById(menuList[i]);
		
		if (Item != null)
		{
			Item.className = "menuItemNormal_A";
			ItemC = document.getElementById(menuList[i] + '_div');
			ItemP = document.getElementById(menuList[i] + '_p');
			if (ItemC != null)
			{
				ItemC.style.position = '';
				ItemC.style.display = 'none';
			}	
			if (ItemP != null)
			{
				ItemP.className = "menuItemNormal";
			}
		}
	}
	if (menuID == null) return;
	menuID.className = "menuItemActive_A";
	Item = document.getElementById(menuID.id + '_div');
	ItemP = document.getElementById(menuID.id + '_p');
	if (Item != null)
	{
		Item.style.position = 'relative';
		if (isIE)
   			Item.style.display = 'inline';
		else
   			Item.style.display = 'inherit';
	}
	
	if (ItemP != null)
	{
		ItemP.className = "menuItemActive";
	}
	
	return;
}

function HideAllContents(Show)
{
	
	var Item  = null;
	var ItemC = null;
	for (i=0;i<menuCount;++i)
	{
		ItemC = document.getElementById(menuList[i] + '_div');
		if ((ItemC != null) && (Show != i))
		{
			ItemC.style.position = '';
			ItemC.style.display = 'none';
		}
		else if (ItemC != null)
		{
		   ItemC.style.position = 'relative';
			if (isIE)
	   			ItemC.style.display = 'inline';
			else
	   			ItemC.style.display = 'inherit';
		   Item = document.getElementById(menuList[i]);
		   if (Item != null)
		   {
		        Item.className = "menuItemActive_A";
		   }
		}
	}
	
	return;
}

// for Broadband
function ChangeBgImage2(menuID, menus, menucount)
{
	var Item = null;
	var ItemC = null;
	var ItemP = null;

	//set style of menu to default
	for (i=0;i<menuCount;++i)
	{
		Item = document.getElementById(menuList[i]);
		
		if (Item != null)
		{
			Item.className = "menuItemNormal_A2";
			ItemC = document.getElementById(menuList[i] + '_div');
			ItemP = document.getElementById(menuList[i] + '_p');
			if (ItemC != null)
			{
				ItemC.style.position = '';
				ItemC.style.display = 'none';
			}	
			if (ItemP != null)
			{
				ItemP.className = "menuItemNormal2";
			}
		}
	}
	if (menuID == null) return;
	menuID.className = "menuItemActive_A2";
	Item = document.getElementById(menuID.id + '_div');
	ItemP = document.getElementById(menuID.id + '_p');
	if (Item != null)
	{
		Item.style.position = 'relative';
		if (isIE)
   			Item.style.display = 'inline';
		else
   			Item.style.display = 'inherit';
	}
	
	if (ItemP != null)
	{
		ItemP.className = "menuItemActive2";
	}
	
	return;
}

function HideAllContents2(Show)
{
	
	var Item  = null;
	var ItemC = null;
	for (i=0;i<menuCount;++i)
	{
		ItemC = document.getElementById(menuList[i] + '_div');
		if ((ItemC != null) && (Show != i))
		{
			ItemC.style.position = '';
			ItemC.style.display = 'none';
		}
		else if (ItemC != null)
		{
		   ItemC.style.position = 'relative';
			if (isIE)
	   			ItemC.style.display = 'inline';
			else
	   			ItemC.style.display = 'inherit';
		   Item = document.getElementById(menuList[i]);
		   if (Item != null)
		   {
		        Item.className = "menuItemActive_A2";
		   }
		}
	}
	
	return;
}


// for Network
function ChangeBgImage3(menuID, menus, menucount)
{
	var Item = null;
	var ItemC = null;
	var ItemP = null;

	//set style of menu to default
	for (i=0;i<menuCount;++i)
	{
		Item = document.getElementById(menuList[i]);
		
		if (Item != null)
		{
			Item.className = "menuItemNormal_A3";
			ItemC = document.getElementById(menuList[i] + '_div');
			ItemP = document.getElementById(menuList[i] + '_p');
			if (ItemC != null)
			{
				ItemC.style.position = '';
				ItemC.style.display = 'none';
			}	
			if (ItemP != null)
			{
				ItemP.className = "menuItemNormal3";
			}
		}
	}
	if (menuID == null) return;
	menuID.className = "menuItemActive_A3";
	Item = document.getElementById(menuID.id + '_div');
	ItemP = document.getElementById(menuID.id + '_p');
	if (Item != null)
	{
		Item.style.position = 'relative';
		if (isIE)
   			Item.style.display = 'inline';
		else
   			Item.style.display = 'inherit';
	}
	
	if (ItemP != null)
	{
		ItemP.className = "menuItemActive3";
	}
	
	return;
}

function HideAllContents3(Show)
{
	
	var Item  = null;
	var ItemC = null;
	for (i=0;i<menuCount;++i)
	{
		ItemC = document.getElementById(menuList[i] + '_div');
		if ((ItemC != null) && (Show != i))
		{
			ItemC.style.position = '';
			ItemC.style.display = 'none';
		}
		else if (ItemC != null)
		{
		   ItemC.style.position = 'relative';
			if (isIE)
	   			ItemC.style.display = 'inline';
			else
	   			ItemC.style.display = 'inherit';
		   Item = document.getElementById(menuList[i]);
		   if (Item != null)
		   {
		        Item.className = "menuItemActive_A3";
		   }
		}
	}
	
	return;
}


// for Wireless
function ChangeBgImage4(menuID, menus, menucount)
{
	var Item = null;
	var ItemC = null;
	var ItemP = null;

	//set style of menu to default
	for (i=0;i<menuCount;++i)
	{
		Item = document.getElementById(menuList[i]);
		
		if (Item != null)
		{
			Item.className = "menuItemNormal_A4";
			ItemC = document.getElementById(menuList[i] + '_div');
			ItemP = document.getElementById(menuList[i] + '_p');
			if (ItemC != null)
			{
				ItemC.style.position = '';
				ItemC.style.display = 'none';
			}	
			if (ItemP != null)
			{
				ItemP.className = "menuItemNormal4";
			}
		}
	}
	if (menuID == null) return;
	menuID.className = "menuItemActive_A4";
	Item = document.getElementById(menuID.id + '_div');
	ItemP = document.getElementById(menuID.id + '_p');
	if (Item != null)
	{
		Item.style.position = 'relative';
		if (isIE)
   			Item.style.display = 'inline';
		else
   			Item.style.display = 'inherit';
	}
	
	if (ItemP != null)
	{
		ItemP.className = "menuItemActive4";
	}
	
	return;
}

function HideAllContents4(Show)
{
	
	var Item  = null;
	var ItemC = null;
	for (i=0;i<menuCount;++i)
	{
		ItemC = document.getElementById(menuList[i] + '_div');
		if ((ItemC != null) && (Show != i))
		{
			ItemC.style.position = '';
			ItemC.style.display = 'none';
		}
		else if (ItemC != null)
		{
		   ItemC.style.position = 'relative';
			if (isIE)
	   			ItemC.style.display = 'inline';
			else
	   			ItemC.style.display = 'inherit';
		   Item = document.getElementById(menuList[i]);
		   if (Item != null)
		   {
		        Item.className = "menuItemActive_A4";
		   }
		}
	}
	
	return;
}