var agt = navigator.userAgent.toLowerCase();

var is_nav = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')!=-1) && (agt.indexOf('compatible')!=-1) && (agt.indexOf('opera')!=-1) && (agt.indexOf('webtv')!=-1));
var is_ie = (agt.indexOf("msie") != -1);

if (is_ie)
	{
	var winwidth = document.body.clientWidth;
	}
	else
	{
	var winwidth = window.innerWidth;
	}

/* --- geometry and timing of the menu --- 
	values are the lists with parameters for different menu levels
	for this menu: [blue_level, green_level, red_level]
*/
var MENU_POS1 = {
	// item sizes for different levels of menu
	'height': [20, 20, 20],
	'width': [100, 150, 150],
	// 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
	'block_top': [102, 24, 5],
	'block_left': [((winwidth-800)/2), 0, 130],
	// offsets between items of the same level
	'top': [0, 21, 21],
	'left': [99, 0, 0],
	'textalign': ['center', 'left', 'left'],
	// time in milliseconds before menu is hidden after cursor has gone out
	// of any items
	'hide_delay': [200, 200, 200]
};

/* --- dynamic menu styles ---
note: you can add as many style properties as you wish but be not all browsers
are able to render them correctly. The only relatively safe properties are
'color' and 'background'.
*/
var MENU_STYLES1 = {
	// default item state when it is visible but doesn't have mouse over
	'onmouseout': [
		'color', ['#FFFFFF', '#FFFFFF', '#FFFFFF'], 
		'background', ['#4773B4', '#4773B4', '#4773B4'],
		'textDecoration', ['none', 'none', 'none'],
		'fontWeight', ['bold', 'normal', 'normal'],
	],
	// state when item has mouse over it
	'onmouseover': [
		'color', ['#FFFFFF', '#000000', '#000000'], 
		'background', ['#89B5F7', '#89B5F7', '#89B5F7'],
		'textDecoration', ['none', 'none', 'none'],
		'fontWeight', ['bold', 'bold', 'normal'],
	],
	// state when mouse button has been pressed on the item
	'onmousedown': [
		'color', ['#FFFFFF', '#000000', '#000000'], 
		'background', ['#89B5F7', '#89B5F7', '#89B5F7'],
		'textDecoration', ['underline', 'none', 'none'],
		'fontWeight', ['bold', 'bold', 'normal'],
	]
};