Service
(function () {
function textOf(el) {
return (el && el.textContent || "").replace(/\s+/g, " ").trim();
}
function resolveItemUrl() {
var match = window.location.search.match(/[?&]item=(\d+)/);
if (!match) {
return null;
}
return window.location.origin + "/a-" + match[1] + "/";
}
function loadAccordion() {
var url = resolveItemUrl();
if (!url) {
return Promise.resolve(null);
}
return new Promise(function (resolve, reject) {
var xhr = new XMLHttpRequest();
xhr.open("GET", url, true);
xhr.onload = function () {
if (xhr.status < 200 || xhr.status >= 400) {
reject(new Error("item page " + xhr.status));
return;
}
var doc = new DOMParser().parseFromString(xhr.responseText, "text/html");
resolve(doc.querySelector(".phywe-item-accordion"));
};
xhr.onerror = function () {
reject(new Error("item page network error"));
};
xhr.send();
});
}
function parseItemBlocks(scope, withQuantity) {
if (!scope) {
return [];
}
var rows = scope.querySelectorAll(".itemslist .row.itemblocks");
var items = [];
for (var i = 0; i < rows.length; i++) {
var cols = rows[i].children;
if (!cols.length) {
continue;
}
var nameLink = cols[0].querySelector("a");
var numberLink = cols[1] ? cols[1].querySelector("a") : null;
var item = {
name: textOf(nameLink || cols[0]),
mappedTo: textOf(numberLink)
};
if (withQuantity && cols[2]) {
var qty = parseInt(textOf(cols[2]).replace(/[^\d]/g, ""), 10);
item.quantity = isNaN(qty) ? textOf(cols[2]) : String(qty);
}
if (item.name) {
items.push(item);
}
}
return items;
}
function fillTable(tableId, items, withQuantity) {
var table = document.getElementById(tableId);
if (!table || !items.length) {
return;
}
var tbody = table.querySelector("tbody");
for (var i = 0; i < items.length; i++) {
var tr = document.createElement("tr");
var nameTd = document.createElement("td");
nameTd.style.width = "80%";
nameTd.textContent = items[i].name;
tr.appendChild(nameTd);
var numberTd = document.createElement("td");
numberTd.textContent = items[i].mappedTo;
tr.appendChild(numberTd);
if (withQuantity) {
var qtyTd = document.createElement("td");
qtyTd.textContent = items[i].quantity || "";
tr.appendChild(qtyTd);
}
tbody.appendChild(tr);
}
var wrapper = table.parentElement;
while (wrapper && wrapper.className.indexOf("printtablediv") === -1) {
wrapper = wrapper.parentElement;
}
if (wrapper) {
wrapper.style.display = "";
}
}
function stepTitle(stepEl) {
if (!stepEl) {
return "";
}
var titleEl = stepEl.querySelector(".card-header button div") || stepEl.querySelector(".card-header button");
return textOf(titleEl);
}
function setHeadline(tableId, title) {
var headline = document.querySelector("#" + tableId + " .printtableheadline");
if (headline && title) {
headline.textContent = title;
}
}
function parseMedia(scope) {
if (!scope) {
return [];
}
var rows = scope.querySelectorAll(".itemslist .row.itemblocks");
var items = [];
for (var i = 0; i < rows.length; i++) {
var cols = rows[i].children;
if (!cols.length) {
continue;
}
var nameLink = cols[0].querySelector("a");
var fileLink = cols[1] ? cols[1].querySelector("a") : null;
var item = {
name: textOf(nameLink || cols[0]),
mappedTo: textOf(fileLink || cols[1]),
quantity: cols[2] ? textOf(cols[2]) : ""
};
if (item.name) {
items.push(item);
}
}
return items;
}
function fillFromAccordion(accordion) {
if (!accordion) {
return;
}
var versucheStep = accordion.querySelector('[data-step="versuche"]');
var versuche = parseItemBlocks(versucheStep, false);
setHeadline("print-versuche", stepTitle(versucheStep));
fillTable("print-versuche", versuche, false);
var lieferumfangStep = accordion.querySelector('[data-step="lieferumfang"]');
var lieferumfang = parseItemBlocks(lieferumfangStep, true);
fillTable("print-lieferumfang", lieferumfang, true);
var zubehoer = accordion.querySelector('[data-step="zubehoer"]');
var sections = zubehoer ? zubehoer.querySelectorAll(".card-body") : [];
var notwendig = [];
var empfohlen = [];
for (var i = 0; i < sections.length; i++) {
var items = parseItemBlocks(sections[i], false);
if (sections[i].querySelector(".text-red, .icon-warning-black")) {
notwendig = items;
} else if (sections[i].querySelector(".text-green, .icon-Mehrwert_black")) {
empfohlen = items;
}
}
fillTable("print-zubehoer-notwendig", notwendig, false);
fillTable("print-zubehoer-empfohlen", empfohlen, false);
var mediaStep = accordion.querySelector('[data-step="media"]');
var media = parseMedia(mediaStep);
setHeadline("print-media", stepTitle(mediaStep));
fillTable("print-media", media, true);
}
function start() {
var itemUrl = resolveItemUrl();
if (!itemUrl) {
setTimeout(function () {
window.print();
}, 2000);
return;
}
loadAccordion()
.then(function (accordion) {
fillFromAccordion(accordion);
})
.catch(function (err) {
if (window.console && console.warn) {
console.warn("Accordion konnte nicht geladen werden:", resolveItemUrl(), err);
}
})
.then(function () {
setTimeout(function () {
window.print();
}, 500);
});
}
if (document.readyState === "loading") {
document.addEventListener("DOMContentLoaded", start);
} else {
start();
}
})();
Technical data Solar and lunar eclipses (with the earth-moon model)Article no: P1067400 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
Principle This experiment on the occurrence of solar and lunar eclipses requires little time and places relatively slight demands on the experimental proficiency of the students. Benefits
Tasks What causes eclipses of the sun and moon? Investigate the causes of eclipses of the sun and moon with the earth-moon model
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PHYWE Systeme GmbH & Co. KG
Robert-Bosch-Breite 10 – 37079 Göttingen – Germany
www.phywe.com
Robert-Bosch-Breite 10 – 37079 Göttingen – Germany
www.phywe.com
