function change2_text(num, mode)
{
	for ( i = 1 ; i <= 2 ; i++)
	{
		document.getElementById("room2_text_" + i).style.display = "none";
	}

	document.getElementById("room2_text_" + num).style.display = "block";

	if ( mode == "off" )
	{
		document.getElementById("category" + num +"_on").style.display	= "block";
		document.getElementById("category" + num +"_off").style.display	= "none";
		
		if ( num == 1 )
		{
			document.getElementById("category2_off").style.display	= "block";
			document.getElementById("category2_on").style.display	= "none";
		}
		else
		{
			document.getElementById("category1_off").style.display	= "block";
			document.getElementById("category1_on").style.display	= "none";
		}
	}
	else
	{
		document.getElementById("category" + num +"_on").style.display	= "none";
		document.getElementById("category" + num +"_off").style.display	= "block";

		for ( i = 1 ; i <= 2 ; i++)
		{
			document.getElementById("room2_text_" + i).style.display = "none";
		}
	}
}