function start_img_complex() {
   loading_bar = new Image();
   loading_bar.src = "pics/laden.jpg";
   rounds = 0;
   var all_links = document.getElementsByTagName('a');
   if(navigator.appName.indexOf("Explorer")!="-1") {
                 window.document.getElementById("prev").innerHTML = '';
                 window.document.getElementById("next").innerHTML = ''; }
   for (var i=0; i<all_links.length; i++) {
         var rel_link = all_links[i];
         var relAttribute = String(rel_link.getAttribute('rel'));

         if (rel_link.getAttribute('href') && (relAttribute.toLowerCase().match('galerie'))){
                rel_link.onclick = function () {
                         var get_pos = this.getAttribute('href').indexOf("bild=");
                         if(get_pos>"-1") {
                         get_pos = get_pos+5;
                         var get_nr = this.getAttribute('href').substr(get_pos, 15);
                         if(get_nr.indexOf("&")>"-1") {
                                 get_nr = get_nr.substr(0,get_nr.indexOf("&"));  }

                          var xmlhttp = null;
                          // Mozilla
                          if (window.XMLHttpRequest) {
                              xmlhttp = new XMLHttpRequest();
                          }
                          // IE
                          else if (window.ActiveXObject) {
                              xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
                          }

                          xmlhttp.open("GET", 'scripts/load_foto.php?id='+get_nr, true);
                          xmlhttp.onreadystatechange = function() {

                              if(xmlhttp.readyState == 4 && xmlhttp.status == 200) {
                                 pfad_bilder = "content/fotografie/bilder/";
                                 xmltitel = xmlhttp.responseText.split("%-%")[1];
                                 xmlfilename = xmlhttp.responseText.split("%-%")[0];
                                 window.document.getElementById("titel_big").innerHTML = xmltitel;
                                 window.document.getElementById("titel_big2").innerHTML = xmltitel;
                                 img_ini(pfad_bilder+xmlfilename);
                                 preload_img(xmlfilename);
                              }
                          }
                          xmlhttp.send(null);
                          }

                         return false;
                         }
         }
         if (rel_link.getAttribute('href') && (relAttribute.toLowerCase().match('direct'))){
                rel_link.onclick = function () {
                         var img_src = this.innerHTML.split('"')[1];
                         img_ini(img_src);
                         return false;
                         }
         }

   }



}
function prev_img() {
         curr_pic = sc.src.split("/")[sc.src.split("/").length-1];
         window.document.getElementById("titel_big").style.visibility = "hidden";

         var xmlhttp = null;
                          // Mozilla
                          if (window.XMLHttpRequest) {
                              xmlhttp = new XMLHttpRequest();
                          }
                          // IE
                          else if (window.ActiveXObject) {
                              xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
                          }

                          xmlhttp.open("GET", 'scripts/chg_foto.php?direction=prev&id='+curr_pic, true);
                          xmlhttp.onreadystatechange = function() {

                              if(xmlhttp.readyState == 4 && xmlhttp.status == 200) {
                                 pfad_bilder = "content/fotografie/bilder/";
                                 xmltitel = xmlhttp.responseText.split("%-%")[1];
                                 xmlfilename = xmlhttp.responseText.split("%-%")[0];
                                 window.document.getElementById("titel_big").innerHTML = xmltitel;
                                 window.document.getElementById("titel_big2").innerHTML = xmltitel;
                                 img_ini(pfad_bilder+xmlfilename),300000;
                                 preload_img(xmlfilename);
                              }
                          }
                          xmlhttp.send(null);
}
function preload_img(curr_pic) {

         var xmlhttp = null;
                          // Mozilla
                          if (window.XMLHttpRequest) {
                              xmlhttp = new XMLHttpRequest();
                          }
                          // IE
                          else if (window.ActiveXObject) {
                              xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
                          }

                          xmlhttp.open("GET", 'scripts/chg_foto.php?direction=preview&id='+curr_pic, true);
                          xmlhttp.onreadystatechange = function() {

                              if(xmlhttp.readyState == 4 && xmlhttp.status == 200) {
                                 pfad_bilder = "content/fotografie/bilder/";
                                 preload_1 = new Image();
                                 preload_2 = new Image();
                                 preload_1.src = pfad_bilder+xmlhttp.responseText.split("%-%")[0];
                                 preload_2.src = pfad_bilder+xmlhttp.responseText.split("%-%")[1];
                              }
                          }
                          xmlhttp.send(null);
}
function next_img() {
        curr_pic = sc.src.split("/")[sc.src.split("/").length-1];
        window.document.getElementById("titel_big").style.visibility = "hidden";

         var xmlhttp = null;
                          // Mozilla
                          if (window.XMLHttpRequest) {
                              xmlhttp = new XMLHttpRequest();
                          }
                          // IE
                          else if (window.ActiveXObject) {
                              xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
                          }

                          xmlhttp.open("GET", 'scripts/chg_foto.php?direction=next&id='+curr_pic, true);
                          xmlhttp.onreadystatechange = function() {

                              if(xmlhttp.readyState == 4 && xmlhttp.status == 200) {
                                 pfad_bilder = "content/fotografie/bilder/";
                                 xmltitel = xmlhttp.responseText.split("%-%")[1];
                                 xmlfilename = xmlhttp.responseText.split("%-%")[0];
                                 window.document.getElementById("titel_big").innerHTML = xmltitel;
                                 window.document.getElementById("titel_big2").innerHTML = xmltitel;
                                 img_ini(pfad_bilder+xmlfilename);
                                 preload_img(xmlfilename);
                              }
                          }
                          xmlhttp.send(null);
}
function img_ini(imgsrc) {
                pfad_img = imgsrc;
                //f = new File(imgsrc);
                window.document.getElementById("sc").style.visibility = "visible";
                window.document.getElementById("prev").style.visibility = "visible";
                window.document.getElementById("next").style.visibility = "visible";
                window.document.getElementById("overlap").style.visibility = "visible";
                window.document.getElementById("bg_dark").style.visibility = "visible";


                b = 0;
                s = 50; /*Geschwindigkeit*/

                showimg = new Image();
                showimg2 = new Image();
                showimg2.src = imgsrc;
                if(!showimg2.complete&&rounds<3) {
                              showimg.src = "pics/laden.jpg";
                              img_loaded = 0;
                              window.document.getElementById("sc").style.visibility = "hidden";
                              window.document.getElementById("img_div").style.visibility = "hidden";
                              window.document.getElementById("img_div").style.overflow = "hidden";
                              window.document.getElementById("load_screen").style.visibility = "visible";
                              }
                else { window.document.getElementById("load_screen").style.visibility = "hidden";
                       window.document.getElementById("img_div").style.visibility = "visible";
                       showimg.src = imgsrc; img_loaded = 1;   }
                window.document.getElementById("sc").src = showimg.src;
                showimg_vsize = showimg.width;
                showimg_hsize = showimg.height;
                window.document.getElementById("sc").width = showimg.width;
                window.document.getElementById("sc").height = showimg.height;

                if(showimg_vsize > (screen.width - 100))
                {
                        pre_vsize = showimg_vsize;
                        pre_hsize = showimg_hsize;

                        window.document.getElementById("sc").width = parseInt(screen.width)-100;
                        showimg_vsize = window.document.getElementById("sc").width;

                        window.document.getElementById("sc").height = (showimg_vsize/pre_vsize)*pre_hsize;
                        showimg_hsize = window.document.getElementById("sc").height;

                }
                if(showimg_hsize > (screen.height - 250))
                {
                        pre_vsize = showimg_vsize;
                        pre_hsize = showimg_hsize;

                        window.document.getElementById("sc").height = parseInt(screen.height)-250;
                        showimg_hsize = window.document.getElementById("sc").height;

                        window.document.getElementById("sc").width = (showimg_hsize/pre_hsize)*pre_vsize;
                        showimg_vsize = window.document.getElementById("sc").width;

                }



                z = parseInt(showimg_hsize)+16; /*Höhe der Box*/
                z1 = parseInt(showimg_vsize)+14; /*Breite der Box*/
                start_pos = screen.width/2;


                div_top = ((screen.height-showimg_hsize-200)/2+20);
                window.document.getElementById("img_div").style.left = start_pos + "px";
                window.document.getElementById("img_div").style.width = 1 + "px";
                window.document.getElementById("img_div").style.height = 1 + "px";
                window.document.getElementById("img_div").style.top = div_top + "px";
                window.document.getElementById("bg_dark").style.visibility = "visible";
                //window.document.getElementById("img_div").style.visibility = "visible";
                b = 0;
                img_open_h();


        }


        function img_open_h() {

                window.document.getElementById("img_div").style.height = b + "px";
                b = b + (z/s);
                if(b<z)
                        {        window.setTimeout('img_open_h()',10);        }
                else
                        {
                                window.document.getElementById("img_div").style.height = z + "px";
                                b = 0;
                                img_open_v();
                        }
        }
        function img_open_v() {

                b = b + (z1/s);
                d = start_pos - (b/2);
                window.document.getElementById("img_div").style.width = b + "px";
                window.document.getElementById("img_div").style.left = d + "px";
                if(b<z1)
                        {        window.setTimeout('img_open_v()',10);        }
                else
                        {
                                do_show_img();
                        }
        }
        function do_show_img() {
                  rounds++;
                  window.document.getElementById("img_div").style.bgColor = "#FF0000";
                  window.document.getElementById("sc").style.visibility = "visible";
                  if(window.document.getElementById("titel_big").innerHTML!=""&&window.document.getElementById("titel_big").innerHTML!="undefined") {
                  window.document.getElementById("titel_big").style.visibility = "visible"; }
                  //window.document.getElementById("titel_big2").style.visibility = "visible";
                  if(img_loaded==0) { setTimeout(img_ini(pfad_img),2000); }
        }
        function hide_img() {
                window.document.getElementById("sc").style.visibility = "hidden";
                window.document.getElementById("img_div").style.visibility = "hidden";
                window.document.getElementById("bg_dark").style.visibility = "hidden";
                window.document.getElementById("prev").style.visibility = "hidden";
                window.document.getElementById("next").style.visibility = "hidden";
                window.document.getElementById("overlap").style.visibility = "hidden";
                window.document.getElementById("titel_big").style.visibility = "hidden";
                window.document.getElementById("titel_big2").style.visibility = "hidden";
                b = 0; rounds = 0;
        }
        function prev_next_visibility(status) {
               if(status.split("_")[1]==1) {
                 window.document.getElementById(status.split("_")[0]).style.opacity = '1.0';
                 if(navigator.appName.indexOf("Explorer")!="-1") {
                         if(status.split("_")[0]=="prev") { anzeige_name = "zurück"; }
                         if(status.split("_")[0]=="next") { anzeige_name = "vor"; }
                         window.document.getElementById(status.split("_")[0]).innerHTML = anzeige_name; }
                  }
                 else {
                 window.document.getElementById(status.split("_")[0]).style.opacity = '0.0';
                 if(navigator.appName.indexOf("Explorer")!="-1") {
                         window.document.getElementById(status.split("_")[0]).innerHTML = ''; }
                  }
        }