var http = null;
function update_cart() {
	var feld = new Array();
	var feld2 = new Array();
	for (i = 0; i < document.form.elements.length; i++) {
		if (document.form.elements[i].type == 'text') {
			feld[i] = document.form.elements[i].value;
			feld2[i] = document.form.elements[i].name;
		}
	}

	var feld_neu = feld.join("@");
	// alert(feld_neu);
	var feld2_neu = feld2.join("@");
	// alert(feld2_neu);

	put_in_cart(feld2_neu, "update_cart", feld_neu);

}
function put_in_cart(produkt, action, anzahl) {
	if (window.XMLHttpRequest) {
		http = new XMLHttpRequest();
	} else if (window.ActiveXObject) {
		http = new ActiveXObject("Microsoft.XMLHTTP");
	}
	if (http != null) {
		if (action == "ins") {
			url = "warenkorb.php?action=add&prod_id=" + produkt + "&quantity="
					+ anzahl;
		}

		if (action == "update_cart") {
			url = "warenkorb.php?action=edit&index=" + produkt + "&quantity="
					+ anzahl;
		}

		if (action == "del") {
			url = "warenkorb.php?action=delete&index=" + produkt;
		}

		if (action == "del_all") {
			url = "warenkorb.php?action=delete_all";
		}

		http.open("GET", url, true);
		http.onreadystatechange = function() {
			ausgeben(action, produkt);
		};
		http.setRequestHeader("Content-Type",
				"application/x-www-form-urlencoded");
		http.setRequestHeader('If-Modified-Since',
				'Sat, 20 May 2006 08:00:00 GMT');
		// verhindert cachen durch setzen auf ein datum aus der vergangenheit:
		// dokument veraltet also neuladen
		http.send(null);
	}
}

function ausgeben(action, produkt) {
	if (http.readyState == 1 || http.readyState == 2 || http.readyState == 3) {
		if (action == "del") {
			document.getElementById("mini").innerHTML = "";
			document.getElementById("bugfix").innerHTML = "<img src='images/cart.gif' style='float:left;margin-right:3px;' /><b>Produkt wird entfernt</b><br /><img src='images/ajax-loader.gif' />";

		}
		if (action == "ins") {
			document.getElementById("mini").innerHTML = "";
			document.getElementById("bugfix").innerHTML = "<img src='images/cart.gif' style='float:left;margin-right:3px;' /><b>Produkt wird hinzugefügt</b><br /><img src='images/ajax-loader.gif' />";
		}

		if (action == "del_all") {
			document.getElementById("bugfix").innerHTML = "<img src='images/cart.gif' style='float:left;margin-right:3px;' /><b>Produkte werden entfernt</b><br /><img src='images/ajax-loader.gif' />";
			document.getElementById("mini").innerHTML = '<img src="images/cart.gif" style="float:left;margin-right:3px;" onmousedown="dragstart(this),draginit()" /><b>Ihr Warenkorb:</b><br />Keine Produkte abgelegt! <br /><span class="cart_font">(Warenkorb l\u00E4sst sich mit der Maus bewegen)</span>';
		}

		if (action == "update_cart") {
			document.getElementById("mini").innerHTML = "";
			document.getElementById("bugfix").innerHTML = "<img src='images/cart.gif' style='float:left;margin-right:3px;' /><b>Warenkorb wird aktualisiert</b><br /><img src='images/ajax-loader.gif' />";
		}
		if (action == "reload") {
			document.getElementById("bugfix").innerHTML = "<img src='images/cart.gif' style='float:left;margin-right:3px;' /><b>Warenkorb wird geladen</b><br /><img src='images/ajax-loader.gif' />";
		}
	}
	if (http.readyState == 4) {
		if (http.status != 200) {
			alert("Es ist ein Fehler aufgetreten" + http.status);
		} else {
			xml = http.responseXML;
			laenge = xml.getElementsByTagName("prod").length;

			if (laenge == 0) {
				text = '<img src="images/cart.gif" style="float:left;margin-right:3px;" onmousedown="dragstart(this),draginit()" /><b>Ihr Warenkorb:</b><br />Keine Produkte abgelegt! <br /><span class="cart_font">(Warenkorb l\u00E4sst sich mit der Maus bewegen)</span>';
				this.document.getElementById("tr_indPayPalPayment").style.display = "";
			}

			else {

				test = new Array();
				test2 = new Array();
				test3 = new Array();
				test4 = new Array();

				text2 = "";

				test5 = xml.getElementsByTagName("anzahlArtikel")[0].firstChild.nodeValue;
				gesPreisBrutto = xml.getElementsByTagName("gesamtPreisBrutto")[0].firstChild.nodeValue;
				gesPreisBrutto = isNaN(gesPreisBrutto) ? gesPreisBrutto
						: Number(gesPreisBrutto).toFixed(2);
				text2 += "<tr><td colspan='4'>" + test5
						+ " Artikel abgelegt !</td></tr>";
				text2 += "<tr><td class='cart_font' colspan='2'>Gesamtpreis (Brutto): </td>";
				text2 += "<td class='cart_font' align='right' nowrap='nowrap'>"
						+ gesPreisBrutto + " \u20AC</td><td>&nbsp;</td></tr>";
				text2 += "<tr><td colspan='4'><hr /></td></tr>";
				document.getElementById("mini").innerHTML = "<table border='0'><tr><td colspan='3'><img src='images/cart.gif' style='float:left;margin-right:3px;' /><b>Ihr Warenkorb:</b></td></tr>"
						+ text2 + "</table>";

				text = "";

				text += "<form name='form'><table border='0'>";
				text += "<tr><td colspan='3'><img src='images/cart.gif' style='float:left;margin-right:3px;' /><b>Ihr Warenkorb:</b></td></tr>";

				for (i = 0; i < laenge; i++) {
					text += "<tr>";
					test4[i] = xml.getElementsByTagName("anzahl")[i].firstChild.nodeValue;
					test[i] = xml.getElementsByTagName("prod")[i].firstChild.nodeValue;
					test2[i] = xml.getElementsByTagName("preis")[i].firstChild.nodeValue;
					test3[i] = xml.getElementsByTagName("prodIndex")[i].firstChild.nodeValue;
					preis = isNaN(test2[i]) ? test2[i] : parseInt(test2[i])
							.toFixed(2);
					text = text
							+ "<td class='cart_font' width='25%'><input type='text' name="
							+ test3[i]
							+ " style='width:25px;border:1px solid black;' value='"
							+ test4[i] + "' />";
					text = text + "<td class='cart_font' width='50%'>"
							+ test[i] + "</td>";
					text = text
							+ "<td class='cart_font' width='25%' align='right' nowrap='nowrap'>"
							+ preis + " \u20AC</td>";
					text = text
							+ "<td width='25%'><a href='javascript:put_in_cart(\""
							+ test3[i]
							+ "\",\"del\")'><img src='images/del2.gif' border='0' /></a></td>";
					text += "</tr>";
				}

				text += "<tr><td colspan='4'><a href='javascript:update_cart()'><img src='images/reload.gif' border='0' /></a></td></tr>";
				text += "<tr><td colspan='4'><hr /></td></tr>";
				gesPreis = xml.getElementsByTagName("gesamtPreis")[0].firstChild.nodeValue;
				gesPreis = isNaN(gesPreis) ? gesPreis : Number(gesPreis)
						.toFixed(2);
				text += "<tr><td class='cart_font' colspan='2'>Gesamtpreis (Netto): </td>";
				text += "<td class='cart_font' align='right' nowrap='nowrap'>"
						+ gesPreis + " \u20AC</td><td>&nbsp;</td></tr>";
				text += "<tr><td class='cart_font' colspan='2'>Gesamtpreis (Brutto): </td>";
				text += "<td class='cart_font' align='right' nowrap='nowrap'>"
						+ gesPreisBrutto + " \u20AC</td><td>&nbsp;</td></tr>";
				text += "<tr><td colspan='4'><hr /></td></tr>";
				text += "<tr><td colspan='4'><table><tr><td><a href='javascript:put_in_cart(\"\",\"del_all\")'><img src='images/del.gif' border='0' /></a></td>";
				text += "<td><a href='cash_point.php'><img src='images/weiter.gif' border='0' /></a></td></tr></td></table>";
				text += "<tr><td colspan='4'><span class='cart_font'>(Warenkorb l\u00E4sst sich mit der Maus bewegen)</span></td></tr>";
				text += "</table></form>";
				this.document.getElementById("tr_indPayPalPayment").style.display = "none";
			}

			document.getElementById("bugfix").innerHTML = text;

			if (action == "del_all") {
				document.getElementById("bugfix").innerHTML = "";
				kleiner();
			}

			mom_hoehe = document.getElementById("Ausgabe").offsetHeight;
			if (action == "ins"
					&& document.getElementById("mini").style.display == "none") {
				hoehe_schnell("bugfix");
			}
		}
	}
}

function reload_check() {
	if (window.XMLHttpRequest) {
		http = new XMLHttpRequest();
	} else if (window.ActiveXObject) {
		http = new ActiveXObject("Microsoft.XMLHTTP");
	}
	if (http != null) {
		http.open("GET", "warenkorb.php", true);
		http.onreadystatechange = function() {
			ausgeben("reload");
		};
		http.setRequestHeader("Content-Type",
				"application/x-www-form-urlencoded");
		http.send(null);
	}
}

function open_window() {
	win = window.open("print_cart.php", "Cart",
			"height=400,width=440,left=300.resizable=yes");
	win.focus();
}