function divToggle(divId)
{
	var div = document.getElementById(divId);
	var disp = div.style.display;
	if (disp == 'none')
	{
		disp = 'block';
	}
	else
	{
		disp = 'none';
	}
	div.style.display = disp;
	return false;
}


function mainToggle(divId)
{
	var div = document.getElementById(divId);
	var disp = div.style.display;
	if (divId == 'about')
	{
	 	 divOpen('about');
		 divClose('services');
	 	 divClose('portfolio');
		 divClose('contact');
		 divClose('home');
	}
	else if (divId == 'services')
	{
	 	 divClose('about');
		 divOpen('services');
	 	 divClose('portfolio');
		 divClose('contact');
		 divClose('home');
	}
		else if (divId == 'portfolio')
	{
	 	 divClose('about');
		 divClose('services');
	 	 divOpen('portfolio');
		 divClose('contact');
		 divClose('home');
	}
		else if (divId == 'contact')
	{
	 	 divClose('about');
		 divClose('services');
	 	 divClose('portfolio');
		 divOpen('contact');
		 divClose('home');
	}
		else if (divId == 'home')
	{
	 	 divClose('about');
		 divClose('services');
	 	 divClose('portfolio');
		 divClose('contact');
		 divOpen('home');
	}
	else 
	{ document.write(div);
	}
}

/* Function to hide a div */ 

function divClose(divId)
{
	var div = document.getElementById(divId);
	var disp = div.style.display;
	{
		disp = 'none';
	}
	div.style.display = disp;
	return false;
}


/* Function to open a div */ 

function divOpen(divId)
{
	var div = document.getElementById(divId);
	var disp = div.style.display;
	{
		disp = 'block';
	}
	div.style.display = disp;
	return false;
}