// *** (3) EVENTS ***

if (!isNS4)
{
 // Write menus now in non-NS4 browsers, by calling the "Fast" mode .update(true) method.
 pMenu.update(true);
 //anotherMenu.update(true);
}
else
{
 // For Netscape 4, back up the old onload function and make a new one to update our menus.
 // This is the regular "Dynamic" mode menu update, it works in IE and NS6 too.
 var popOldOL = window.onload;
 window.onload = function()
 {
  if (popOldOL) popOldOL();
  pMenu.update();
  //anotherMenu.update();
 }
}


// Other events must be assigned, these are less complicated, just add or remove menu objects.

window.onresize = function()
{
 ns4BugCheck();
 pMenu.position();
 //anotherMenu.position();
}

window.onscroll = function()
{
 pMenu.position();
 //anotherMenu.position();
}

if (isNS4) document.captureEvents(Event.CLICK);
document.onclick = function(evt)
{
 pMenu.click();
 //anotherMenu.click();
 if (isNS4) return document.routeEvent(evt);
}


// A small function that refreshes NS4 on window resize to avoid bugs, called above.
var nsWinW = window.innerWidth, nsWinH = window.innerHeight;
function ns4BugCheck()
{
 if (isNS4 && (nsWinW!=innerWidth || nsWinH!=innerHeight)) location.reload()
}

// Activate the useful 'onscroll' event for non-Microsoft browsers.
if (!isIE || window.opera)
{
 var nsPX=pageXOffset, nsPY=pageYOffset;
 setInterval('if (nsPX!=pageXOffset || nsPY!=pageYOffset) ' +
 '{ nsPX=pageXOffset; nsPY=pageYOffset; window.onscroll() }', 50);
}





// *** (4) ANIMATION ***
//

function menuClip(menuObj, menuName, dir)
{
 // The array index of the named menu (e.g. 'mFile') in the menu object (e.g. 'pMenu').
 var mD = menuObj.menu[menuName][0];
 // Add timer and counter variables to the menu data structure, we'll need them.
 if (!mD.timer) mD.timer = 0;
 if (!mD.counter) mD.counter = 0;
 with (mD)
 {
  // Stop any existing animation and do our visibility tricks.
  clearTimeout(timer);
  if (dir==1) lyr.vis('visible');
  lyr.clip(0, 0, menuW+2, (menuH+2)*Math.pow(Math.sin(Math.PI*counter/20),0.75) );
  // Increment the counter and if it hasn't reached the end (10 steps either way) set the timer.
  // Clear the clipping value in DOM browsers as early NS6 versions are quite terrible at this.
  counter += dir;
  if (counter==11) { counter = 10; if (isDOM&&!isIE) lyr.sty.clip='' }
  else if (counter<0) { counter = 0; lyr.vis('hidden') }
  else {
    if (isIE) {
      timer = setTimeout(menuObj.myName+'.'+(dir==1?'show':'hide')+'Menu("'+menuName+'")', 20);
	}
	else {
	  timer = setTimeout(menuObj.myName+'.'+(dir==1?'show':'hide')+'Menu("'+menuName+'")', 80);
	}
  }
 }
}


// Add the effect to the 'pMenu' menu object for supported browsers. Opera doesn't support clipping
// so we turn it off, neither does IE4/Mac.
if (!window.opera)
{
 pMenu.showMenu = new Function('mN','menuClip(pMenu, mN, 1)');
 pMenu.hideMenu = new Function('mN','menuClip(pMenu, mN, -1)');
 // Add it to other menu objects like this...
 //anotherMenu.showMenu = new Function('mN','menuClip(anotherMenu, mN, 1)');
 //anotherMenu.hideMenu = new Function('mN','menuClip(anotherMenu, mN, -1)');
}






// *** (5) FRAMESETS ***
//

function changeMenu() { with (pMenu)
{
 // If your modifications are quite extensive, probably hide the menu before commencing
 // them, as the script relies on the menu array in realtime to handle highlighting etc.
 //over('root', 0);
 //menu.root[0].lyr.vis('hidden');

 // Create a whole new menu...
 startMenu('mNewMenu', true, 0, 22, 130, subM);
 addItem('<b>TwinHelix Designs:</b><br>Extreme DHTML.<br>Small Code.<br>Click to Visit...',
  'window.open("http://www.twinhelix.com")', 'js:', subM, 70);

 // Alter just the 'Visit My Site' menu item to pop it out... setting nextItem tells the
 // addItem() command which item number we are up to in the sequence.
 actMenu = 'root';
 nextItem = 4;
 addItem('&nbsp; Dynamism...', 'mNewMenu', 'sm:', hBar, 80);

 // Call the update function to implement our changes.
 update();
}}


// This is just the moving command called when you click the feature list.
function moveRoot()
{
 with (pMenu.menu.root[0].lyr) x( (x()<100) ? 100 : 10);
}