var nrb = 64;
var nbrb = 63;

function imp()
{
alert("Berthold Messing\n Bergstr. 1\n D-99894 Catterfeld\n Tel. +49 36253 40625\n mail\@bertman.de");
}


function start()
{
 
 document.images[0].src = "images/small-back/1.jpg";
}

function la(a)
{

imgb = a - 1;

document.basket.art.value=a;
document.images[nrb].src = "images/middle/"+a+".JPG";

for(i=0; i <= nbrb; i++)
{
b = i;
b++;
document.images[i].src = "images/small/"+b+".JPG";
}

document.images[imgb].src = "images/small-back/"+a+".jpg";

}


function go()
{

var c = document.basket.art.value;
if (document.basket.mot[0].checked == true) { d = "12"; }
if (document.basket.mot[1].checked == true) { d = "11"; }
if (document.basket.mot[2].checked == true) { d = "10"; }
if (document.basket.mot[3].checked == true) { d = "4"; }
if (document.basket.mot[4].checked == true) { d = "5"; }
if (document.basket.mot[5].checked == true) { d = "1"; }

window.open("http://bertman.einkauf24.net/index.php?action=3&artikel="+d+"&motivnr="+c+"&sid=");

}

function zurueck()
{
var count = document.basket.art.value;

if(count <= 1)
{
countzur = 64; imgcountzur = 63;
}
else
{
countzur = count - 1; imgcountzur = count - 2;
}

for(i=0; i <= nbrb; i++)
{
b = i;
b++;
document.images[i].src = "images/small/"+b+".JPG";
}


window.document.images[nrb].src = "images/middle/"+countzur+".JPG";
window.document.images[imgcountzur].src = "images/small-back/"+countzur+".jpg";


document.basket.art.value = countzur;

}

function vor()
{

var countvor = document.basket.art.value;

if(countvor > nbrb)
{
countvor = "1"; imgcountvor = "0";
}
else
{
imgcountvor = countvor; countvor++; 
}

for(i=0; i <= nbrb; i++)
{
b = i;
b++;
document.images[i].src = "images/small/"+b+".JPG";
}

window.document.images[nrb].src = "images/middle/"+countvor+".JPG";
window.document.images[imgcountvor].src = "images/small-back/"+countvor+".jpg";

document.basket.art.value = countvor;

}