/* --- geometry and timing of the categories menu --- */

var MENU_POS = new Array();
	// item sizes for [main, sub] category menu
	MENU_POS['width']  = [159, 170];
	MENU_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
	MENU_POS['block_top']  = [0, 0];
	MENU_POS['block_left'] = [0, 157];
	// offsets between items of the same level
	MENU_POS['top']  = [24, 24];
	MENU_POS['left'] = [0, 0];
	// time in milliseconds before menu is hidden after cursor has gone out
	// of any items
	MENU_POS['hide_delay'] = [200, 200];
	
/* --- dynamic menu styles ---
note: you can add as many style properties as you wish but not all browsers
are able to render them correctly. The only relatively safe properties are
'color' and 'background'.
*/
var MENU_STYLES = new Array();
	// default item state for [main, sub] category when it is visible but doesn't have mouseover
	MENU_STYLES['onmouseout'] = [
		'color', ['#000000', '#000000'], 
		'background', ['#FFFFFF', '#FFFFFF'],
	];
	// state for [main, sub] category when item has mouseover it
	MENU_STYLES['onmouseover'] = [
		'color', ['#FFFFFF', '#FFFFFF'], 
		'background', ['#4AA9E3', '#4AA9E3'],
	];
	// state for [main, sub] category when item has mousedown
	MENU_STYLES['onmousedown'] = [
		'color', ['#000000', '#000000'], 
		'background', ['white', 'white'],
	];