/********************************************************
*														*
*	This code relates to the Image Show					*
*														* 
********************************************************/ 
function newWin(link,w,h,s,r) 
{
  var winFeatures = 'width=' + w + ',height=' + h + ',scrollbars=' + s + ',resizable=' + r;
  var bookWindow = window.open(link, "", winFeatures);
}

function gotoshow()
{
	if (!window.winslide||winslide.closed)
	winslide=window.open(slidelinks[whichlink])
	else
	winslide.location=slidelinks[whichlink]
	winslide.focus()
}

function slideshowimages()
{
	for (i=0;i<slideshowimages.arguments.length;i++)
	{
		slideimages[i]=new Image()
		slideimages[i].src=slideshowimages.arguments[i]
	}
}

function slideshowlinks()
{
	for (i=0;i<slideshowlinks.arguments.length;i++)
	slidelinks[i]=slideshowlinks.arguments[i]
}

function slideit()
{
	if (!document.images)
	return
	document.images.slide.src=slideimages[whichimage].src
	whichlink=whichimage
	if (whichimage<slideimages.length-1)
	whichimage++
	else
	whichimage=0
	setTimeout("slideit()",slideshowspeed)
}

// This is the speed at which the images slide to next image (milliseconds)
var slideshowspeed=7000
var whichlink=0
var whichimage=0

/********************************************************
*														*
*	This code relates to the Menu						*
*														* 
********************************************************/ 

var DDSPEED = 10;
var DDTIMER = 15;

// main function to handle the mouse events //
function ddMenu(id,d)
{
  var h = document.getElementById(id + '-ddheader');
  var c = document.getElementById(id + '-ddcontent');
  clearInterval(c.timer);
  if(d == 1)
  {
    clearTimeout(h.timer);
    if(c.maxh && c.maxh <= c.offsetHeight){return}
    else if(!c.maxh){
      c.style.display = 'block';
      c.style.height = 'auto';
      c.maxh = c.offsetHeight;
      c.style.height = '0px';
    }
    c.timer = setInterval(function(){ddSlide(c,1)},DDTIMER);
  }
  else
  {
    h.timer = setTimeout(function(){ddCollapse(c)},50);
  }
}

// collapse the menu //
function ddCollapse(c)
{
  c.timer = setInterval(function(){ddSlide(c,-1)},DDTIMER);
}

// cancel the collapse if a user rolls over the dropdown //
function cancelHide(id)
{
  var h = document.getElementById(id + '-ddheader');
  var c = document.getElementById(id + '-ddcontent');
  clearTimeout(h.timer);
  clearInterval(c.timer);
  if(c.offsetHeight < c.maxh)
  {
    c.timer = setInterval(function(){ddSlide(c,1)},DDTIMER);
  }
}

// incrementally expand/contract the dropdown and change the opacity //
function ddSlide(c,d)
{
  var currh = c.offsetHeight;
  var dist;
  if(d == 1)
  {
    dist = (Math.round((c.maxh - currh) / DDSPEED));
  }
  else
  {
    dist = (Math.round(currh / DDSPEED));
  }
  if(dist <= 1 && d == 1)
  {
    dist = 1;
  }
  c.style.height = currh + (dist * d) + 'px';
  c.style.opacity = currh / c.maxh;
  c.style.filter = 'alpha(opacity=' + (currh * 100 / c.maxh) + ')';
  if((currh < 2 && d != 1) || (currh > (c.maxh - 2) && d == 1))
  {
    clearInterval(c.timer);
  }
}