var nav = new Object;
var menus = new Array();
var capture = new Object;
var home = new Object;
var selected = -1;


function navInit (sel) {
	nav = new DivObject('nav');
	if (sel > -1)
		selected = sel;
	for (i=0; i<6; i++)
		menus[i] = new DivObject('menu_'+i);
	capture = new DivObject('capture');
	capture.hide();
	nav.show();
}

function displayMenu (i) {
	clearAllMenus();
	if (i < 6)
		menus[i].show();
	imageReplace('nav_'+i, 'images/but_'+i+'_roll.gif');
	capture.show();
}

function clearAllMenus () {
	if (capture) {
		capture.hide();
		for (i=0; i<7; i++){
			if (i < 6)
				menus[i].hide();
			if (i == selected)
				imageReplace('nav_'+i, 'images/but_'+i+'_on.gif');
			else	imageReplace('nav_'+i, 'images/but_'+i+'_off.gif');
		}
	}
}