var gal = Array(0);
var scan_tab = Array(0);
// Determine browser and version.

function Browser() {

  var ua, s, i;

  this.isIE    = false;
  this.isNS    = false;
  this.version = null;

  ua = navigator.userAgent;

  s = "MSIE";
  if ((i = ua.indexOf(s)) >= 0) {
    this.isIE = true;
    this.version = parseFloat(ua.substr(i + s.length));
    return;
  }

  s = "Netscape6/";
  if ((i = ua.indexOf(s)) >= 0) {
    this.isNS = true;
    this.version = parseFloat(ua.substr(i + s.length));
    return;
  }

  // Treat any other "Gecko" browser as NS 6.1.

  s = "Gecko";
  if ((i = ua.indexOf(s)) >= 0) {
    this.isNS = true;
    this.version = 6.1;
    return;
  }
}

var browser = new Browser();

// Global object to hold drag information.

var dragObj = new Object();
dragObj.zIndex = 0;

function dragStart(event, id) {

  var el;
  var x, y;

  // If an element id was given, find it. Otherwise use the element being
  // clicked on.

  if (id)
    dragObj.elNode = document.getElementById(id);
  else {
    if (browser.isIE)
      dragObj.elNode = window.event.srcElement;
    if (browser.isNS)
      dragObj.elNode = event.target;

    // If this is a text node, use its parent element.

    if (dragObj.elNode.nodeType == 3)
      dragObj.elNode = dragObj.elNode.parentNode;
  }

  // Get cursor position with respect to the page.

  if (browser.isIE) {
    x = window.event.clientX + document.documentElement.scrollLeft
      + document.body.scrollLeft;
    y = window.event.clientY + document.documentElement.scrollTop
      + document.body.scrollTop;
  }
  if (browser.isNS) {
    x = event.clientX + window.scrollX;
    y = event.clientY + window.scrollY;
  }

  // Save starting positions of cursor and element.

  dragObj.cursorStartX = x;
  dragObj.cursorStartY = y;
  dragObj.elStartLeft  = parseInt(dragObj.elNode.style.left, 10);
  dragObj.elStartTop   = parseInt(dragObj.elNode.style.top,  10);

  if (isNaN(dragObj.elStartLeft)) dragObj.elStartLeft = 0;
  if (isNaN(dragObj.elStartTop))  dragObj.elStartTop  = 0;

  // Update element's z-index.

  dragObj.elNode.style.zIndex = ++dragObj.zIndex;

  // Capture mousemove and mouseup events on the page.

  if (browser.isIE) {
    document.attachEvent("onmousemove", dragGo);
    document.attachEvent("onmouseup",   dragStop);
    window.event.cancelBubble = true;
    window.event.returnValue = false;
  }
  if (browser.isNS) {
    document.addEventListener("mousemove", dragGo,   true);
    document.addEventListener("mouseup",   dragStop, true);
    event.preventDefault();
  }
}

function dragGo(event) {

  var x, y;

  // Get cursor position with respect to the page.

  if (browser.isIE) {
    x = window.event.clientX + document.documentElement.scrollLeft
      + document.body.scrollLeft;
    y = window.event.clientY + document.documentElement.scrollTop
      + document.body.scrollTop;
  }
  if (browser.isNS) {
    x = event.clientX + window.scrollX;
    y = event.clientY + window.scrollY;
  }

  // Move drag element by the same amount the cursor has moved.

  dragObj.elNode.style.left = (dragObj.elStartLeft + x - dragObj.cursorStartX) + "px";
  dragObj.elNode.style.top  = (dragObj.elStartTop  + y - dragObj.cursorStartY) + "px";

  if (browser.isIE) {
    window.event.cancelBubble = true;
    window.event.returnValue = false;
  }
  if (browser.isNS)
    event.preventDefault();
}

function dragStop(event) {

  // Clear the drag element global.

  dragObj.elNode = null;

  // Stop capturing mousemove and mouseup events.

  if (browser.isIE) {
    document.detachEvent("onmousemove", dragGo);
    document.detachEvent("onmouseup",   dragStop);
  }
  if (browser.isNS) {
    document.removeEventListener("mousemove", dragGo,   true);
    document.removeEventListener("mouseup",   dragStop, true);
  }
}

function $(id) {
	return document.getElementById(id);
}


function galeria(id,galeria,title) {
	
   	if(!gal[id]) {
   		
   	
   	imagebrowser = document.createElement("div");	
   	imagebrowser.setAttribute("id","outerDiv"+id);
   	imagebrowser.setAttribute("class","boxA");
   	imagebrowser.setAttribute("className", "boxA");

   	$("parent").appendChild(imagebrowser);
   	
   	
   	if (window.innerHeight) {
    pos = window.pageYOffset
	}
	else if (document.documentElement && document.documentElement.scrollTop) {
    pos = document.documentElement.scrollTop
	}
	else if (document.body) {
    pos = document.body.scrollTop
  	}
   	
  	
  	if(window.innerHeight) {
	pos2 = window.innerHeight;
    } 
    else if( document.documentElement && document.documentElement.clientHeight ) {
	pos2 = document.documentElement.clientHeight;
	} 
	else if( document.body && document.body.clientHeight ) {
	pos2 = document.body.clientHeight;
    }
  	
  	
  	
   	$("outerDiv"+id).style.marginLeft = parseInt((document.body.clientWidth / 2) - 300) + "px";
	$("outerDiv"+id).style.marginTop =  parseInt(pos) + parseInt(pos2 / 2) - 220 + "px"; 
	
   	pasek_tyt = document.createElement("div");	
   	pasek_tyt.innerHTML = "<span style='width:600px;height:25px' onmousedown=\"dragStart(event, 'outerDiv"+id+"');\"><table width='600' height='25'><tr><td width='560'><span class='title'>Galeria </span><span class='title' id='title"+id+"' style='font-weight:bold'></span></td><td align='right'><a href=\"javascript:close('outerDiv"+id+"\');\"><img src='img/close.gif'></a><td></tr></table></span>";	
   	pasek_tyt.setAttribute("class","boxB");  
   	pasek_tyt.setAttribute("className", "boxB"); 	
	imagebrowser.appendChild(pasek_tyt);
	 		
		
	odp = document.createElement("div");
	odp.innerHTML = "<table style='height:415px; width:100%;'><tr><td><center>Loading...</center></td></tr></table>";
	odp.setAttribute("id","odp"+id);
	
	imagebrowser.appendChild(odp);
	xajax_galeria(id,galeria);
	
	
	}
	  
	$("outerDiv"+id).style.display = "block";

	gal[id] = 1;
}

function close(div) {
	$(div).style.display = "none";
}

function zmien(id,fotka) {
	$("fotka_duza"+id).src = "fotki/d/"+fotka;
	
}