var liveBoard;
var loop=0;
if (document.layers) { visible = 'show'; }
else if (document.all) { visible = 'visible'; }
else if (document.getElementById) { visible = 'visible'; }
if (document.layers) { hidden = 'hide'; } 
else if (document.all) { hidden = 'hidden'; }
else if (document.getElementById) { hidden = 'hidden'; }

function showBoard (loop) {
	if (loop == allBoards.length)
		{ loop = 0 ; }
	liveBoard = allBoards[loop];
	if (document.layers) 
		{ theBoard = document.layers[liveBoard]; } 
	else if (document.all) 
		{ theBoard = document.all(liveBoard).style; }
	else if (document.getElementById) 
		{ theBoard = document.getElementById(liveBoard).style; }
	theBoard.visibility = visible;
	pause=setTimeout("hideBoard(" + loop + ");", 7000);
}
function hideBoard (loop) {
	liveBoard = allBoards[loop];
	if (document.layers) 
		{ theBoard = document.layers[liveBoard]; } 
	else if (document.all) 
		{ theBoard = document.all(liveBoard).style; }
	else if (document.getElementById) 
		{ theBoard = document.getElementById(liveBoard).style; }
	theBoard.visibility = hidden;
	loop++;
	showBoard(loop);
}