// Menu Scripts
//----------------------------------------------------------------------------
// Here you place the ids of every element you want:

var ids = new Array('instructorsub','javasub','csharpsub');

//----------------------------------------------------------------------------

function switchid(id)
{	
	hideallids();
	showdiv(id);
}

function hideallids()
{
	// Loop through the array and hide each element by id
	for (var i=0; i < ids.length; i++){
		hidediv(ids[i]);
	}		  
}

function hidediv(id) 
{
	// Safe function to hide an element with a specified id
	if (document.getElementById) 
	{ 
		// DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'none';
	}
	else 
	{
		if (document.layers) 
		{ 	
			// Netscape 4
			document.id.display = 'none';
		}
		else 
		{
			// IE 4
			document.all.id.style.display = 'none';
		}
	}
}

function showdiv(id) 
{
	// Safe function to show an element with a specified id
		  
	if (document.getElementById) 
	{ 
		// DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'block';
	}
	else 
	{
		if (document.layers) 
		{ 
			// Netscape 4
			document.id.display = 'block';
		}
		else 
		{ 
			// IE 4
			document.all.id.style.display = 'block';
		}
	}
}