function show(val)
{
	if( val == 1 )
	{
		document.getElementById("row2").style.display = "none";
		if( document.getElementById("row1").style.display == "none" )
			document.getElementById("row1").style.display = "table-row";
		else
			document.getElementById("row1").style.display = "none";
	}
	
	else if( val == 2 )
	{
		document.getElementById("row1").style.display = "none";
		if( document.getElementById("row2").style.display == "none" )
			document.getElementById("row2").style.display = "table-row";
		else
			document.getElementById("row2").style.display = "none";
	}
	
	else if( val == 3 )
	{
		document.getElementById("row2").style.display = "none";
		if( document.getElementById("row1").style.display == "none" )
		{
			document.getElementById("row1").style.display = "table-row";
			document.getElementById("row3").style.display = "table-row";
		}
		else
		{
			document.getElementById("row1").style.display = "none";
			document.getElementById("row3").style.display = "none";
		}
	}
	
	else if( val == 4 )
	{
		document.getElementById("row1").style.display = "none";
		document.getElementById("row3").style.display = "none";
		if( document.getElementById("row2").style.display == "none" )
			document.getElementById("row2").style.display = "table-row";
		else
			document.getElementById("row2").style.display = "none";
	}
	
	return false;
}