NewImg = new Array (
"images/1.jpg",
"images/2.jpg",
"images/3.jpg",
"images/4.jpg",
"images/5.jpg",
1
);
NewImg_big = new Array (
"images/1_big.jpg",
"images/2_big.jpg",
"images/3_big.jpg",
"images/4_big.jpg",
"images/5_big.jpg",
1
);
var currImg, tmp;
var numImg = 0;
var blank = "images/blank.gif";
function ChgImg (direction)
{
	
	function Change (index, k)
	{
		switch (k)
		{ 
		  case 1:                     
		     document.getElementById('beforeImg').src = NewImg [index];
		     document.getElementById('beforeLink').href = NewImg_link [index];
             break;
          case 2:                     
		     document.getElementById('Img').src = NewImg [index];
		     document.getElementById('Link').href = NewImg_link [index];
             break;
          case 3:                     
		     document.getElementById('afterImg').src = NewImg [index];
		     document.getElementById('afterLink').href = NewImg_link [index];
             break;
          default:
             break;
		}
	}


	numImg= numImg+direction;
	if (document.getElementById('beforeImg') && document.getElementById('Img') && document.getElementById('afterImg'))
	{
	   
	   
	   if (direction > 0) 
	   {
	 	  if (numImg  > NewImg.length-2) 
	 	  {
			Change (numImg - NewImg.length+1, 1);
			numImg = 0;
		  } else   {Change (numImg, 1);}
		 
		  if (numImg+1  > NewImg.length-2) 
		  {  Change (numImg - NewImg.length+2, 2);}
		  else   {Change (numImg+1, 2);}
	   
		  if (numImg+2  > NewImg.length-2) {   Change (numImg - NewImg.length + 3, 3); }
		  else   {Change (numImg+2, 3);}
	   }
	   
	   if (direction < 0) 
	   {
	 	  if (numImg  < 0) 
		  {
			numImg = NewImg.length - 2;
			Change (numImg, 1);
		  } else   {Change (numImg, 1);}
		 
		  if (numImg+1  > NewImg.length-2) { Change (0, 2); }
		  else   { Change (numImg+1, 2);}
	   
		  if (numImg+2  > NewImg.length-2) { Change (numImg - NewImg.length + 3, 3);}
		  else   {Change (numImg+2, 3);}
	   }
  
     if (document.getElementById('BigImg')) {document.getElementById('BigImg').src = NewImg_big [numImg];}
	}
	
}

function ChgImgInn (src)
{
   if (document.getElementById('BigImgPr')) 
    {
      document.getElementById('BigImgPr').src = src;
      //document.getElementById('photo_view').style.height = 0+"px";
      //ResizeLayer();/////////////////////////////////
    }
   
}

function ResizeLayer()
{
  if (document.getElementById('photo_view'))
  {
    document.getElementById('photo_view').style.height = getDocumentHeight()+"px";
    document.getElementById('photo_view').style.width = getDocumentWidth()+"px";
  }

}

window.onload = function()
{
	//ResizeLayer();/////////////////////////
}
window.onresize = function()
{
	//ResizeLayer();//////////////////////////////////
}


function  vis(visible)
{

   if (visible == 1)
   {  
      ResizeLayer();
      document.getElementById('photo_view').style.visibility = 'visible';
      document.getElementById('img_con').style.visibility = 'visible';
      document.images['BigImg'].src = document.getElementById('BigImgPr').src;
      
   }
   else
   {      
      document.getElementById('img_con').style.visibility = 'hidden';
      document.images['BigImg'].src = blank;
      document.getElementById('photo_view').style.visibility = 'hidden';
      document.getElementById('photo_view').style.height = 0+"px";
   }
}

function ImgPrev()
{
document.write("<div class=\"preview_inn\" ><a href=\"javascript:ChgImgInn('images/1_big.jpg')\"><img src=\"images/1.jpg\" class=\"img\"></a></div>");
}

var ua = navigator.userAgent.toLowerCase();
var isOpera = (ua.indexOf('opera')  > -1);
var isIE = (!isOpera && ua.indexOf('msie') > -1);

function getDocumentHeight() {
  return Math.max(document.compatMode != 'CSS1Compat' ? document.body.scrollHeight : document.documentElement.scrollHeight, getViewportHeight());
}
 
function getViewportHeight() {
  return ((document.compatMode || isIE) && !isOpera) ? (document.compatMode == 'CSS1Compat') ? document.documentElement.clientHeight : document.body.clientHeight : (document.parentWindow || document.defaultView).innerHeight;
}

function getDocumentWidth() {
  return Math.max(document.compatMode != 'CSS1Compat' ? document.body.scrollWidth : document.documentElement.scrollWidth, getViewportWidth());
}
function getViewportWidth() {
  return ((document.compatMode || isIE) && !isOpera) ? (document.compatMode == 'CSS1Compat') ? document.documentElement.clientWidth : document.body.clientWidth : (document.parentWindow || document.defaultView).innerWidth;
}



function getClientWidth()
{
  return document.compatMode=='CSS1Compat' && !window.opera?document.documentElement.clientWidth:document.body.clientWidth;
}

function getClientHeight()
{
  return document.compatMode=='CSS1Compat' && !window.opera?document.documentElement.clientHeight:document.body.clientHeight;
}