/* this file requires functions.js */

/* default set-up */
var menuPrefix = 'menu_';
var navPrefix = 'nav_';
var menus = Array(); // define here or after the javascript include (preferred)
var delay = 100;

var positionMenuX = 'left';
var positionMenuY = 'bottom';
var positionOffsetX = 0;
var positionOffsetY = 0;

/* page controls */
var timeOn = null

/* hide menus when document is rolled over */
document.onmouseover = hideAllMenus;

/* init error */
window.onerror = null;

/* detect browser */
var browser = navigator.appName;
var b_version = navigator.appVersion;
var b_agent = navigator.userAgent;
var version = parseFloat(b_version);

/* hides all menus */
function hideAllMenus () {
	//changeVisibility('menu_about', 'hidden');
	for (i=0; i<menus.length; i++) {
		var cMenu = menuPrefix + menus[i];
		changeVisibility(cMenu, 'hidden');
	}
} 

/* menu item/obj rollover */
function over () {
	window.event.cancelBubble=true;
	clearTimeout(timeOn);
}

/* roll out of object */
function out () {
	timeOn = setTimeout("hideAllMenus()", delay);
}

/* show a menu */
function show (id, obj) {
	if (obj) {
		hideAllMenus();
		obj.cancelBubble = true;
		var menuID = menuPrefix + id;
		var navID = navPrefix + id;
		if (!move(menuID, navID, positionMenuY, positionMenuX, positionOffsetY, positionOffsetX)) return false;
		if (!changeVisibility(menuID, 'visible')) return false;
		return true;
	} else return false;
} 

// initialize hacks whenever the page loads
window.onload = initializeHacks;

// setup an event handler to hide popups for generic clicks on the document
//document.onclick = hideAllMenus;

function initializeHacks() {
    // this ugly little hack resizes a blank div to make sure you can click
    // anywhere in the window for Mac MSIE 5
  if ((navigator.appVersion.indexOf('MSIE 5') != -1) 
		&& (navigator.platform.indexOf('Mac') != -1)
		&& getStyleObject('blankDiv')) {
		window.onresize = explorerMacResizeFix;
  }
  resizeBlankDiv();
  // this next function creates a placeholder object for older browsers
  createFakeEventObj();
}

function createFakeEventObj() {
	// create a fake event object for older browsers to avoid errors in function call
	// when we need to pass the event object to functions
  if (!window.event) {
		window.event = false;
  }
} // createFakeEventObj

function resizeBlankDiv() {
	// resize blank placeholder div so IE 5 on mac will get all clicks in window
	if ((navigator.appVersion.indexOf('MSIE 5') != -1) 
		&& (navigator.platform.indexOf('Mac') != -1)
		&& getStyleObject('blankDiv')) {
			getStyleObject('blankDiv').width = document.body.clientWidth - 20;
			getStyleObject('blankDiv').height = document.body.clientHeight - 20;
  }
}
function explorerMacResizeFix () {
    location.reload(false);
}