function disp_content(id)
{
	if(id=="sub1")
	{
		if(document.getElementById('sub1').style.display=="none")
		{
			document.getElementById('sub1').style.display="block";
			document.getElementById('sub2').style.display="none";
			document.getElementById('sub3').style.display="none";
			document.getElementById('sub4').style.display="none";
			document.getElementById('sub5').style.display="none";
			document.getElementById('sub6').style.display="none";
			document.getElementById('sub7').style.display="none";
			document.getElementById('sub8').style.display="none";
		}
		else
		{
			document.getElementById('sub1').style.display="none";
		}
	}
	if(id=="sub2")
	{
		if(document.getElementById('sub2').style.display=="none")
		{
			document.getElementById('sub1').style.display="none";
			document.getElementById('sub2').style.display="block";
			document.getElementById('sub3').style.display="none";
			document.getElementById('sub4').style.display="none";
			document.getElementById('sub5').style.display="none";
			document.getElementById('sub6').style.display="none";
			document.getElementById('sub7').style.display="none";
			document.getElementById('sub8').style.display="none";
		}
		else
		{
			document.getElementById('sub2').style.display="none";
		}
	}
	if(id=="sub3")
	{
		if(document.getElementById('sub3').style.display=="none")
		{
			document.getElementById('sub1').style.display="none";
			document.getElementById('sub2').style.display="none";
			document.getElementById('sub3').style.display="block";
			document.getElementById('sub4').style.display="none";
			document.getElementById('sub5').style.display="none";
			document.getElementById('sub6').style.display="none";
			document.getElementById('sub7').style.display="none";
			document.getElementById('sub8').style.display="none";
		}
		else
		{
			document.getElementById('sub3').style.display="none";
		}
	}
	if(id=="sub4")
	{
		if(document.getElementById('sub4').style.display=="none")
		{
			document.getElementById('sub1').style.display="none";
			document.getElementById('sub2').style.display="none";
			document.getElementById('sub3').style.display="none";
			document.getElementById('sub4').style.display="block";
			document.getElementById('sub5').style.display="none";
			document.getElementById('sub6').style.display="none";
			document.getElementById('sub7').style.display="none";
			document.getElementById('sub8').style.display="none";
		}
		else
		{
			document.getElementById('sub4').style.display="none";
		}
	}
	
	
	if(id=="sub5")
	{
		if(document.getElementById('sub5').style.display=="none")
		{
			document.getElementById('sub1').style.display="none";
			document.getElementById('sub2').style.display="none";
			document.getElementById('sub3').style.display="none";
			document.getElementById('sub4').style.display="none";
			document.getElementById('sub5').style.display="block";
			document.getElementById('sub6').style.display="none";
			document.getElementById('sub7').style.display="none";
			document.getElementById('sub8').style.display="none";
		}
		else
		{
			document.getElementById('sub5').style.display="none";
		}
	}

	if(id=="sub6")
	{
		if(document.getElementById('sub6').style.display=="none")
		{
			document.getElementById('sub1').style.display="none";
			document.getElementById('sub2').style.display="none";
			document.getElementById('sub3').style.display="none";
			document.getElementById('sub4').style.display="none";
			document.getElementById('sub5').style.display="none";
			document.getElementById('sub6').style.display="block";
			document.getElementById('sub7').style.display="none";
			document.getElementById('sub8').style.display="none";
		}
		else
		{
			document.getElementById('sub6').style.display="none";
		}
	}
	
	if(id=="sub7")
	{
		if(document.getElementById('sub7').style.display=="none")
		{
			document.getElementById('sub1').style.display="none";
			document.getElementById('sub2').style.display="none";
			document.getElementById('sub3').style.display="none";
			document.getElementById('sub4').style.display="none";
			document.getElementById('sub5').style.display="none";
			document.getElementById('sub6').style.display="none";
			document.getElementById('sub7').style.display="block";
			document.getElementById('sub8').style.display="none";
		}
		else
		{
			document.getElementById('sub7').style.display="none";
		}
	}
	
	if(id=="sub8")
	{
		if(document.getElementById('sub8').style.display=="none")
		{
			document.getElementById('sub1').style.display="none";
			document.getElementById('sub2').style.display="none";
			document.getElementById('sub3').style.display="none";
			document.getElementById('sub4').style.display="none";
			document.getElementById('sub5').style.display="none";
			document.getElementById('sub6').style.display="none";
			document.getElementById('sub7').style.display="none";
			document.getElementById('sub8').style.display="block";
		}
		else
		{
			document.getElementById('sub8').style.display="none";
		}
	}
	
	
}