var manufac = navigator.appName;
function hideAll()
{//this will take care of netscape 6 users
	if (manufac == "Netscape")
	{
	var divArray = document.getElementsByTagName('DIV');
	var divName;
	for (i=0;i<divArray.length;i++)
		{
			divName = divArray[i].id;
			if (divName.indexOf('subnav') > -1)
			{
				divArray[i].style.visibility='hidden';
				divArray[i].style.position='absolute';
			}
		}
	}
	else
	{
		var divArray = document.all.tags("DIV");
		var divName;
		for (i=0;i<divArray.length;i++)
		{
			divName = divArray[i].id;
			if (divName.indexOf('subnav') > -1)
			{
				divArray[i].style.visibility='hidden';
				divArray[i].style.position='absolute';
			}
		}
		}
}


function hideTopNavs()
{
//this will take care of netscape 6 users
	if (manufac == "Netscape")
	{
	var divArray = document.getElementsByTagName('DIV');
	var divName;
	for (i=0;i<divArray.length;i++)
		{
			divName = divArray[i].id;
			if (divName.indexOf('topN') > -1)
			{
				divArray[i].className='topNavText';
			}
		}
	}
	else
	{
		var divArray = document.all.tags("DIV");
		var divName;
		for (i=0;i<divArray.length;i++)
		{
			divName = divArray[i].id;
			if (divName.indexOf('topN') > -1)
			{
				divArray[i].className='topNavText';
			}	
		}
	}

}


function valDiv(scid)
{
		
		if (manufac == "Netscape")
		{
			var divArray = document.getElementsByTagName('DIV');
			var divName;
			var isTrue = 0;
			for (i=0;i<divArray.length;i++)
			{
				divName = divArray[i].id;
				if (divName == "subnav"+scid)
				{
					isTrue = 1;
				}
			}
			
			if (isTrue == 1)
			{
				return true;
			}
			else
			{
				return false;
			} 
		}
		else
		{
		
			var divArray = document.all.tags("DIV");
			var divName;
			var isTrue = 0;
			for (i=0;i<divArray.length;i++)
			{
				divName = divArray[i].id;
				if (divName == "subnav"+scid)
				{
					isTrue = 1;
				}
			}
			
			if (isTrue == 1)
			{
				return true;
			}
			else
			{
				return false;
			}
		}
}

function grabSub(scid)
{
	hideAll(scid);
	var objDiv;
	if (manufac == "Netscape")
		{
		if (valDiv(scid) == true)
			{
			objDiv = document.getElementById("subnav" + scid);
			objDiv.style.visibility = 'visible';
			//objDiv.style.top = "50px";
			}
		}
		else
		{
			if (valDiv(scid) == true)
			{
			objDiv = eval("subnav" + scid + ".style");
			objDiv.position = 'static';
			objDiv.visibility = 'visible';
			}
		}
	
}