var closeup1  = 1;
var file1 = 1;

var closeup2  = 1;
var file2 = 1;

var closeup3  = 1;
var file3 = 1;

var advance;
var limit;

function nextimg1(number1,cat,limit1) {
file1 = number1;
filename1 = "iframe/bilder"+cat+"_"+file1+".html";
parent.window[cat].document.location.href = filename1;
closeup1 = file1;
if (file1 >= limit1) { file1 = 0; closeup1 = limit1; }
}

function nextimg2(number2,cat,limit2) {
file2 = number2;
filename2 = "iframe/bilder"+cat+"_"+file2+".html";
parent.window[cat].document.location.href = filename2;
closeup2 = file2;
if (file2 >= limit2) { file2 = 0; closeup2 = limit2; }
}

function nextimg3(number3,cat,limit3) {
file3 = number3;
filename3 = "iframe/bilder"+cat+"_"+file3+".html";
parent.window[cat].document.location.href = filename3;
closeup3 = file3;
if (file3 >= limit3) { file3 = 0; closeup3 = limit3; }
}


function Zoom(file,cat) {
var location = "closeup.shtml?"+cat+file+".jpg";
window.open(location, 'CloseUp', 'toolbar=0, location=0, directories=0, status=0, menubar=0, scrollbars=0, width=600, height=500, resizable=1');
}


function plan() {
popup = window.open('plan/index.html','Lageplan','toolbar=no,location=no,directories=no,status=no,copyhistory=no,scrollbars=no,resizable=no,width=550,height=400');
if (popup.opener == null) popup.opener = window;
}