/* --- geometry and timing of the menu --- */
var M_POS = new Array();

	// item sizes for different levels of menu
	M_POS['width'] = [20, 120];
	M_POS['height'] = [20, 20];

	// menu block offset from the origin:
	//	for root level origin is upper left corner of the page
	//	for other levels origin is upper left corner of parent item
	M_POS['block_left'] = [16, 20];
	M_POS['block_top'] = [96, 0];

	// offsets between items of the same level
	M_POS['left'] = [0, 0];
	M_POS['top'] = [20, 24];

	// time in milliseconds before menu is hidden after cursor has gone out
	// of any items
	M_POS['hide_delay'] = [200, 200];