var imageGalleryLeftPos = false;
var imageGalleryWidth = false;
var imageGalleryObj = false;
var maxGalleryXPos = false;
var slideSpeed = 0;

function startSlide(e)
{
	if(document.all)e = event;
	var id = this.id;
	if(this.id=='arrow_right'){
		slideSpeed = -5;
	}else{
		slideSpeed = 5;
	}
}

function releaseSlide()
{
	var id = this.id;
	slideSpeed=0;
}

function gallerySlide()
{
	if(slideSpeed!=0){
		var leftPos = imageGalleryObj.offsetLeft;
		leftPos = leftPos/1 + slideSpeed;
		if(leftPos > maxGalleryXPos) {
			leftPos = maxGalleryXPos;
			slideSpeed = 0;
		}
		if(leftPos<minGalleryXPos) {
			leftPos = minGalleryXPos;
			slideSpeed=0;
		}

		imageGalleryObj.style.left = leftPos + 'px';
	}
	setTimeout('gallerySlide()',20);

}

function initSlideShow()
{
	if(document.getElementById('arrow_left'))
	  document.getElementById('arrow_left').onmousemove = startSlide;
	if(document.getElementById('arrow_left'))
	  document.getElementById('arrow_left').onmouseout = releaseSlide;	  
	if(document.getElementById('arrow_right'))
	  document.getElementById('arrow_right').onmousemove = startSlide;	  
	if(document.getElementById('arrow_right'))
	  document.getElementById('arrow_right').onmouseout = releaseSlide;	  
	if(document.getElementById('theImages')){
	  imageGalleryObj = document.getElementById('theImages');
	  imageGalleryLeftPos = imageGalleryObj.offsetLeft;
	  imageGalleryWidth = document.getElementById('galleryContainer').offsetWidth - 80;
	  maxGalleryXPos = imageGalleryObj.offsetLeft;
	  minGalleryXPos = imageGalleryWidth - document.getElementById('slideEnd').offsetLeft;
	  var divs = imageGalleryObj.getElementsByTagName('DIV');
	  var count_divs = divs.length - 1;
	  if(count_divs > 1) gallerySlide();
  }
}

window.onload = initSlideShow;