//main navigation button rollover/highlight

var path1 = 'images/home_base/'
var path2 = 'images/comp_opts/comopts_2ndlevel/'

var image_path = new Array()
image_path[0] = path1 + 'navblock_one.gif'
image_path[1] = path1 + 'navblock_two.gif'
image_path[2] = path1 + 'navblock_three.gif'
image_path[3] = path1 + 'navblock_four.gif'
image_path[4] = path2 + 'fix_submen-effek.gif'
image_path[5] = path2 + 'fix_submen-wallsy.gif'

image_path[6] = path1 + 'navblock_one-over.gif'
image_path[7] = path1 + 'navblock_two-over.gif'
image_path[8] = path1 + 'navblock_three-over.gif'
image_path[9] = path1 + 'navblock_four-over.gif'
image_path[10] = path2 + 'fix_submen-effeko.gif'
image_path[11] = path2 + 'fix_submen-wallsyo.gif'

function image_highlight(img_id, img_number, img_action)
{
	if (img_action == 'off') img_index = 0
	if (img_action == 'on') img_index = 6

	var img_obj = document.getElementById(img_id)
	img_obj.src = image_path[img_number + img_index]
}