function dropShow(x, y)
	{
		document.getElementById(x).style.display='block'
		document.getElementById(y).className='selected'
	}

function dropHide(x, y)
	{
		document.getElementById(x).style.display='none'
		document.getElementById(y).className=''
	}

function dropSubShow(x)
	{
		document.getElementById(x).style.display='block'
		}

function dropSubHide(x)
	{
		document.getElementById(x).style.display='none'
		}