// JScript File
function ShowOne( layerId )
{
	for( var i = 0; i < myLayers.length; i++ )
	{
		util_Hide( "t_" + myLayers[i] );
		util_SetClass( "a_" + myLayers[i], "button1" );
	}
	
	util_Show( "t_" + layerId );
	util_SetClass( "a_" + layerId, "button1_active" );
}