function switchMenu(obj) {
	var el = document.getElementById(obj);
	if ( el.style.display != "none" ) {
		el.style.display = 'none';
	}
	else {
		el.style.display = '';
	}
}
		
function ColourImage( status, imageID )
{
	var el = document.getElementById(imageID);
	
	if( el != null )
	{
		if( status == "on" )
		{
			slowhigh( el );
		}
		else if( status == "off" )
		{
				slowlow( el );
		}
	}
}