/*
	@author MiRacLe <miracle@cccmos.com>
	@since 17,01.2006
	based on code LightBox.js by Lokesh Dhakar
	http://huddletogether.com/projects/lightbox/
	@changelog
		hide object & select tags before show overlay
    @since 21.02.2006
    @changelog
        fixed position of preloaded image
*/
var loadingImage = '/pict/sp/loading.gif';		
var closeButton = '/pict/sp/close.gif';		
var blankImage = '/pict/1x1.gif';
var __Top = 0;
var __Left = 0;
function createShowPic() {	
	if (!document.getElementsByTagName){ return; }
	var objBody = document.getElementsByTagName("body").item(0);	
	var objOverlay = document.createElement("div");
	objOverlay.setAttribute('id','overlay');
	objOverlay.onclick = function () {closeShowPic(); return false;}
	objOverlay.style.display = 'none';
	objOverlay.style.position = 'absolute';
	objOverlay.style.top = '0';
	objOverlay.style.left = '0';
	objOverlay.style.zIndex = '90';
 	objOverlay.style.width = '100%';
	objBody.insertBefore(objOverlay, objBody.firstChild);	
	var arrayPageSize = getPageSize();
	var arrayPageScroll = getPageScroll();
	var imgPreloader = new Image();	
	imgPreloader.onload=function(){
		var objLoadingImageLink = document.createElement('a');
		objLoadingImageLink.setAttribute('href','#');
		objLoadingImageLink.onclick = function () {closeShowPic(); return false;}
		objOverlay.appendChild(objLoadingImageLink);		
		var objLoadingImage = document.createElement('img');
		objLoadingImage.src = loadingImage;
		objLoadingImage.setAttribute('id','loadingImage');
		objLoadingImage.style.position = 'absolute';
		objLoadingImage.style.zIndex = '150';
		objLoadingImageLink.appendChild(objLoadingImage);
		imgPreloader.onload=function(){};	//	clear onLoad, as IE will flip out w/animated gifs
		return false;
	}
	imgPreloader.src = loadingImage;
	var objShowPic = document.createElement('div');
	objShowPic.setAttribute('id','showpic');
	objShowPic.style.display = 'none';
	objShowPic.style.position = 'absolute';
	objShowPic.style.zIndex = '100';	
	objBody.insertBefore(objShowPic, objOverlay.nextSibling);	
	var objLink = document.createElement('a');
	objLink.setAttribute('href','#');
	objLink.setAttribute('title',ClickToClose);
	objLink.onclick = function () {closeShowPic(); return false;}
	objShowPic.appendChild(objLink);
	var imgPreloadCloseButton = new Image();
	imgPreloadCloseButton.onload=function() {
		var objCloseButton = document.createElement('img');
		objCloseButton.src = closeButton;
		objCloseButton.setAttribute('id','closeButton');
		objCloseButton.style.position = 'absolute';
		objCloseButton.style.zIndex = '200';
		objCloseButton.style.top = '5px';		
		objCloseButton.style.right = '5px';		
		objLink.appendChild(objCloseButton);
		return false;
	}
	imgPreloadCloseButton.src = closeButton;
	var objImage = document.createElement('img');
	objImage.setAttribute('id','showPicImage');
	objLink.appendChild(objImage);
	var objCaption = document.createElement('div');
	objCaption.setAttribute('id','showPicCaption');
	objCaption.style.display = 'none';
	objShowPic.appendChild(objCaption);
}
//
// getPageScroll()
// Returns array with x,y page scroll values.
// Core code from - quirksmode.org
//
function getPageScroll(){

	var yScroll;

	if (self.pageYOffset) {
		yScroll = self.pageYOffset;
	} else if (document.documentElement && document.documentElement.scrollTop){	 // Explorer 6 Strict
		yScroll = document.documentElement.scrollTop;
	} else if (document.body) {// all other Explorers
		yScroll = document.body.scrollTop;
	}

	arrayPageScroll = new Array('',yScroll) 
	return arrayPageScroll;
}
//
// getPageSize()
// Returns array with page width, height and window width, height
// Core code from - quirksmode.org
// Edit for Firefox by pHaez
//
function getPageSize() {
	var xScroll, yScroll;	
	if (window.innerHeight && window.scrollMaxY) {	
		xScroll = document.getElementsByTagName('body')[0].scrollWidth;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}	
	var windowWidth, windowHeight;
	if (self.innerHeight) {	// all except Explorer
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}		
	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else { 
		pageHeight = yScroll;
	}
	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){	
		pageWidth = windowWidth;
	} else {
		pageWidth = xScroll;
	}
	arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
	return arrayPageSize;
}
//
// pause(numberMillis)
// Pauses code execution for specified time. Uses busy code, not good.
// Code from http://www.faqts.com/knowledge_base/view.phtml/aid/1602
//
function pause(numberMillis) {
	var now = new Date();
	var exitTime = now.getTime() + numberMillis;
	while (true) {
		now = new Date();
		if (now.getTime() > exitTime)
			return;
	}
}

function ShowPic(objLink) {
	var objOverlay = document.getElementById('overlay');
	var objShowPic = document.getElementById('showpic');
	var objCaption = document.getElementById('showPicCaption');
	var objImage = document.getElementById('showPicImage');
	var objLoadingImage = document.getElementById('loadingImage');
// Hide some elements before show overlay
	var advC = document.getElementsByTagName('object');
	for (var i = 0; i < advC.length; i++) {
		var obj = advC[i];		
		if (obj && obj.style) obj.style.display = 'none';			
	}
	var advC = document.getElementsByTagName('select');
	for (var i = 0; i < advC.length; i++) {
		var obj = advC[i];		
		if (obj && obj.style) obj.style.display = 'none';		
	}
	var arrayPageSize = getPageSize();
	var arrayPageScroll = getPageScroll();
	// center loadingImage if it exists
	if (objLoadingImage) {
		objLoadingImage.style.top = (arrayPageScroll[1] + ((arrayPageSize[3] - 35 - objLoadingImage.height) / 2) + 'px');
		objLoadingImage.style.left = (((arrayPageSize[0] - 20 - objLoadingImage.width) / 2) + 'px');
		objLoadingImage.style.display = 'block';
	}
	objOverlay.style.height = (arrayPageSize[1] + 'px');
	objOverlay.style.display = 'block';
	var imgPreload = new Image();
  imgPreload.onload=function(){
//		objImage.src = this.src.replace(/t[n|m]_/i,'') + '?rn=24332dsêóåtreêóåfdsf4';

		var _Top = arrayPageScroll[1] + ((arrayPageSize[3] - 20 - this.height) / 2);		
    var _Left = ((arrayPageSize[0] - 20 - this.width) / 2);		
		objShowPic.style.top = (_Top < 0) ? "0px" : _Top + "px";
		objShowPic.style.left = (_Left < 0) ? "0px" : _Left + "px";		
    
		var tooltip = objLink.getAttribute('title') || objLink.getAttribute('alt');
		if(tooltip){
			objCaption.style.display = 'block';
			//objCaption.style.width = objLink.width + 'px';
			objCaption.innerHTML = tooltip;
		} else {
			objCaption.style.display = 'none';
		}		
		// A small pause between the image loading and displaying is required with IE,
		// this prevents the previous image displaying for a short burst causing flicker.
		if (navigator.appVersion.indexOf("MSIE")!=-1){
			pause(250);
		} 
		objLoadingImage.style.display = 'none';
    objImage.src = this.src;    
		objShowPic.style.display = 'block';    
		// After image is loaded, update the overlay height as the new image might have
		// increased the overall page height.
		arrayPageSize = getPageSize();
		objOverlay.style.height = (arrayPageSize[1] + 'px');
		return false;
	}	
  imgPreload.src = objLink.src.replace(/t[n|m]_/i,'');
}
function closeShowPic() {
	var objOverlay = document.getElementById('overlay');
	var objShowPic = document.getElementById('showpic');
	var objImage = document.getElementById('showPicImage');
	objImage.src = blankImage;
	objOverlay.style.display = 'none';
	objShowPic.style.display = 'none';
	var advC = document.getElementsByTagName('object');
	for (var i = 0; i < advC.length; i++) {
		var obj = advC[i];		
		if (obj && obj.style) obj.style.display = 'block';			
	}
	var advC = document.getElementsByTagName('select');
	for (var i = 0; i < advC.length; i++) {
		var obj = advC[i];		
		if (obj && obj.style) obj.style.display = '';			
	}	
}