var leer = 0;
var wohin = 'start.html';
var maxmenge = 50;
var error = '\nThe amount entered is incorrect!';
var del_art = 'Do you really want to remove this item from your shopping cart?';
var del_all = 'Do you really want to remove all items from your shopping cart?';
var nix_drin = '\nYour shopping cart is empty.';


var basket = top.basket.substring(0, top.basket.length-3);
if (basket != null) items = basket.split('###');
for (i in items) items[i] = items[i].split('|');


function runden(wert) {
        k = (Math.round(100 * (wert + 0.00001)) / 100 + 0.001) + '';
    k = k.substring(0, k.indexOf('.') + 3);
    return k;

}


function rechnen() {

        zsumme = runden(parseFloat(items[i][2]))*runden(parseFloat(items[i][3]));
        gesamtpreis += runden(parseFloat(items[i][2]))*runden(parseFloat(items[i][3]));
        ergebnis = runden(zsumme);
        return ergebnis;

}


function gesamt() {

        gesamtpreis = runden(gesamtpreis);
    return gesamtpreis

}


function dazu(name,nummer,preis,menge) {
if(menge <= 0 || menge > maxmenge)
   alert(error);
else
   if (confirm('Add: - '+menge+' x "'+name+'" - to your shopping cart. '))
           top.basket += name+'|'+nummer+'|'+preis+'|'+menge+'###';
}


function del_me(cnt) {

        if (confirm(del_art)) {

        var del = '';
        basket = top.basket.substring(0, top.basket.length-3);
        if (basket != null) items = basket.split('###');

        for (i in items) {
                 if (i != cnt) del += items[i] +'###';
             }

         top.basket = del;
        self.location = 'warenkorb.html';

        }

}


function update() {

        var upd = '';
        var tmp = '';

        for (i in items) {
                 upd += eval('document.forms[0].menge'+i+'.value')+'~';
         }

        upd = upd.substring(0, upd.length-1);
        upd = upd.split('~');

        for (i in items) {
                  items[i][3] = upd[i];
                  tmp += items[i][0]+ '|' +items[i][1]+ '|' +items[i][2]+ '|' +items[i][3]+ '###';
                  }

        top.basket = tmp;
        self.location = 'warenkorb.html';

}


function aktion(x) {

        if (x==1) {
                if (confirm(del_all))
                   { top.basket = ''; self.location='warenkorb.html'; }
                }

        if (x==2) {
                if (top.basket != "") parent.inhalt.location = 'bestellen.html';
                else alert(nix_drin);
                }
		if (x==3) {
                if (top.basket != "") parent.inhalt.location = 'bestellen2.html';
                else alert(nix_drin);
                }
}