/*
Simple Image Trail script- By JavaScriptKit.com
Visit http://www.javascriptkit.com for this script and more
This notice must stay intact

Modified by Tim Kroeger (tim@breakmyzencart.com) for use with
image handler 2 and better cross browser functionality
*/

var offsetfrommouse=[10,10]; //image x,y offsets from cursor position in pixels. Enter 0,0 for no offset
var displayduration=0; //duration in seconds image should remain visible. 0 for always.
var currentimageheight = 400;   // maximum image size.
var padding=10; // padding must by larger than specified div padding in stylessheet

// Global variables for sizes of hoverimg
// Defined in "showtrail()", used in "followmouse()"
var zoomimg_w=0;
var zoomimg_h=0;


if (document.getElementById || document.all){
  document.write('<div id="trailimageid">');
  document.write('</div>');
}

function getObj(name) {
  if (document.getElementById) {
      this.obj = document.getElementById(name);
    this.style = document.getElementById(name).style;
  } else if (document.all) {
    this.obj = document.all[name];
    this.style = document.all[name].style;
  } else if (document.layers) {
    this.obj = document.layers[name];
    this.style = document.layers[name];
  }
}

function gettrail(){
  return new getObj("trailimageid");
}

function truebody(){
  return (!window.opera && document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}

function showtrail(imagename,title,oriwidth,oriheight,zoomimgwidth,zoomimgheight, image, startx, starty, startw, starth){
    zoomimg_w=zoomimgwidth;
    zoomimg_h=zoomimgheight;
  //if (oriwidth > 0){ offsetfrommouse[0] = oriwidth; }
  //if (oriheight > 0){ offsetfrommouse[1] = -1 *(zoomimgheight-oriheight)/2 - 40; }
  // alert (offsetfrommouse[0] + "," + offsetfrommouse[1]);
  if (zoomimgheight > 0){ currentimageheight = zoomimgheight; }
  trailobj = gettrail().obj;
  trailobj.style.width=(zoomimgwidth+(2*padding))+"px";
  trailobj.style.height=(zoomimgheight+(2*padding))+"px";
  trailobj.setAttribute("startx", startx);
  trailobj.setAttribute("starty", starty);
  trailobj.setAttribute("startw", startw);
  trailobj.setAttribute("starth", starth);
  trailobj.setAttribute("imagename", imagename);
  trailobj.setAttribute("imgtitle", title);
  document.onmousemove=followmouse;
}

function hidetrail(){
  trailstyle = gettrail().style;
  trailstyle.visibility = "hidden";
  document.onmousemove = "";
  trailstyle.left = "-2000px";
  trailstyle.top = "-2000px";
}

function followmouse(e){

  var xcoord=offsetfrommouse[0];
  var ycoord=offsetfrommouse[1];

  var docwidth=document.all? truebody().scrollLeft+truebody().clientWidth : pageXOffset+window.innerWidth-15;
  var docheight=document.all? Math.min(truebody().scrollHeight, truebody().clientHeight) : Math.min(window.innerHeight);

  //if (document.all){
  //    trail.obj.innerHTML = 'A = ' + truebody().scrollHeight + '<br>B = ' + truebody().clientHeight;
  //} else {
  //    trail.obj.innerHTML = 'C = ' + document.body.offsetHeight + '<br>D = ' + window.innerHeight;
  //}
  var relativeX = null;
  var relativeY = null;

  if (typeof e != "undefined"){
    if ((typeof e.layerX != "undefined") && (typeof e.layerY != "undefined")) {
      relativeX = e.layerX;
      relativeY = e.layerY;
    } else if ((typeof e.x != "undefined") && (typeof e.y != "undefined")) {
      relativeX = e.x;
      relativeY = e.y;
    }

    if (docwidth - e.pageX < zoomimg_w + (3 * padding)) {
      xcoord = e.pageX - xcoord - zoomimg_w - (2 * offsetfrommouse[0]);
    } else {
      xcoord += e.pageX;
    }
    if (docheight - e.pageY < zoomimg_h + (2 * padding)){
      ycoord += e.pageY - Math.max(0,(0 + zoomimg_h + (5 * padding) + e.pageY - docheight - truebody().scrollTop));
    } else {
      ycoord += e.pageY;
    }
  } else if (typeof window.event != "undefined"){
    if ((typeof event.x != "undefined") && (typeof event.y != "undefined")) {
      relativeX = event.x;
      relativeY = event.y;
    } else if ((typeof event.offsetX != "undefined") && (event.offsetY != "undefined")) {
      relativeX = event.offsetX;
      relativeY = event.offsetY;
    }

    if (docwidth - event.clientX < zoomimg_w + (3 * padding)) {
      xcoord = event.clientX - xcoord - zoomimg_w - (2 * offsetfrommouse[0]);
    } else {
      xcoord += truebody().scrollLeft+event.clientX;
    }
    if (docheight - event.clientY < zoomimg_h + (2 * padding)){
      ycoord += event.clientY - Math.max(0,(0 + zoomimg_h + (5 * padding) + event.clientY - docheight - truebody().scrollTop));
    } else {
      ycoord += truebody().scrollTop + event.clientY;
    }
  }

  trail = gettrail();
  startx    = trail.obj.getAttribute("startx");
  starty    = trail.obj.getAttribute("starty");
  startw    = trail.obj.getAttribute("startw");
  starth    = trail.obj.getAttribute("starth");
  imagename = trail.obj.getAttribute("imagename");
  title     = trail.obj.getAttribute("imgtitle");

  // calculate and set position BEFORE switching to visible
  var docwidth=document.all? truebody().scrollLeft+truebody().clientWidth : pageXOffset+window.innerWidth-15;
  var docheight=document.all? Math.max(truebody().scrollHeight, truebody().clientHeight) : Math.max(document.body.offsetHeight, window.innerHeight);
  if(ycoord < 0) { ycoord = ycoord*-1; }
  if ((trail.style.left == "-2000px") || (trail.style.left == "")) { trail.style.left=xcoord+"px"; }
  if ((trail.style.top == "-2000px") || (trail.style.top == "")) { trail.style.top=ycoord+"px"; }
  trail.style.left=xcoord+"px";
  trail.style.top=ycoord+"px";
//  alert (trail.style.left+","+trail.style.top);

  if (trail.style.visibility != "visible") {
    if (((relativeX == null) || (relativeY == null)) ||
      ((relativeX >= startx) && (relativeX <= (startx + startw))
      && (relativeY >= starty) && (relativeY <= (starty + starth)))){
      newHTML = '<div><h1>' + title + '</h1>';
      newHTML = newHTML + '<img src="' + imagename + '"></div>';
      trail.obj.innerHTML = newHTML;
      trail.style.visibility="visible";
    }
  }
}

function showDarky(){
    window.open("darky.html","Darky","status=no,toolbar=no,resizable=yes,width=900,height=600,left=160,top=110");
}

function showImages(id){
    window.open("slider.php?id="+id,"Doplňující obrázky","status=no,toolbar=no,resizable=no,width=800,height=600,left=160,top=110");
}

function row()
{
    document.getElementById("view-layout").setAttribute("class", "items view-row");
    document.getElementById("row_btn").setAttribute("class", "action");
    document.getElementById("box_btn").setAttribute("class", "");
    document.cookie = "view-layout=row;";
}
function box()
{
    document.getElementById("view-layout").setAttribute("class", "items view-box");
    document.getElementById("row_btn").setAttribute("class", "");
    document.getElementById("box_btn").setAttribute("class", "action");
    document.cookie = "view-layout=box;";
}

function manufacturers(x)
{
    var content = document.getElementById("content");
    var CE = content.getElementsByTagName("*");
    var f0 = document.getElementById("filter_0");
    var filter0 = f0.checked;
    if(filter0 && x==0)
        {
            for (var i = 0; i < CE.length; i++)
                {
                    if(CE[i].type=="checkbox")
                    CE[i].checked = false;
                }
            f0.checked = true;
        }
    if(filter0 && x!=0)
            f0.checked = false;
}

function send_comment()
{
    var name = document.getElementById('nameelm');
    var mail = document.getElementById('mailelm');
    var text = document.getElementById('textelm');
    var product = document.getElementById('products_id');
    if(name.value==""){alert("Prosím vyplňte jméno");return false;}
    if(mail.value==""){alert("Prosím vyplňte e-mail");return false;}
    if(text.value==""){alert("Prosím vyplňte text Vašeho komentáře");return false;}
    var req = '/add-comment.php';
    var data = 'name='+name.value+'&mail='+mail.value+'&text='+text.value+'&product='+product.value;
    requestPOST(req,data);
    name.value="";
    mail.value="";
    text.value="";
    return false;
}

var httpRequest=false;
function request(url)
{
        try
            {
              httpRequest = new ActiveXObject("Msxml2.XMLHTTP");
            } catch (e)
                {
                    try
                        {
                            httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
                        } catch (E)
                            {
                                httpRequest = false;
                            }
                }

            if (!httpRequest && typeof XMLHttpRequest!='undefined')
                {
                    try
                        {
                            httpRequest = new XMLHttpRequest();
                        } catch (e)
                            {
                                httpRequest=false;
                            }
                }

            if (!httpRequest && window.createRequest)
                {
                    try
                        {
                            httpRequest = window.createRequest();
                        } catch (e)
                            {
                                httpRequest=false;
                            }
                }

        httpRequest.open("GET", url, false);
        httpRequest.onreadystatechange= function () {parser(); };
        httpRequest.send(null);
}

function requestPOST(url,data)
{
        try
            {
              httpRequest = new ActiveXObject("Msxml2.XMLHTTP");
            } catch (e)
                {
                    try
                        {
                            httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
                        } catch (E)
                            {
                                httpRequest = false;
                            }
                }

            if (!httpRequest && typeof XMLHttpRequest!='undefined')
                {
                    try
                        {
                            httpRequest = new XMLHttpRequest();
                        } catch (e)
                            {
                                httpRequest=false;
                            }
                }

            if (!httpRequest && window.createRequest)
                {
                    try
                        {
                            httpRequest = window.createRequest();
                        } catch (e)
                            {
                                httpRequest=false;
                            }
                }

        httpRequest.open("POST", url, false);
        httpRequest.setRequestHeader("Content-type", "application/x-www-form-urlencoded; charset=windows-1250");
		httpRequest.setRequestHeader("Content-length", data.length);
		httpRequest.setRequestHeader("Connection", "close");
        httpRequest.onreadystatechange= function () {parser(); };
        httpRequest.send(data);
}

function parser()
{
  if (httpRequest.readyState == 4)
  {
    if(httpRequest.status == 200)
    {
      alert('Komentář úspěšně uložen. Po jeho schválení bude zobrazen');
    }
    else
    {
        alert('Komentář se nepodařilo uložit');
    }
  }
}