section of index.shtml.
function showOptional(optionName) {
var element;
element = document.getElementById(optionName);
if (element == null)
alert("Programming error: cannot find optional code for " + optionName);
else
element.style.display = "block";
element = document.getElementById(optionName + "_details");
if (element != null)
element.style.display = "block";
}
// Show the details for a selected topic. This routine finds tag corresponding to the given
// topic by prepending "D_" to the id of the topic tag.
function showLinksDetails(newTopic) {
var newDetails = document.getElementById("D_" + newTopic.id);
if (currentTopic == null)
currentTopic = document.getElementById("overview");
var currentDetails = document.getElementById("D_" + currentTopic.id);
currentTopic.style.fontWeight = "normal";
currentDetails.style.display = "none";
newTopic.style.fontWeight = "bold";
newDetails.style.display = "block";
currentTopic = newTopic;
}
// Start swapping banner images. This function runs forever.
function startBannerSwapping() {
setInterval(function() {swapBanners()}, swapTime);
}
// Swap banner images. Ideally when user changes tabs, the banner image shouldn't revert
// to the first image. However, fixing this is hard.
function swapBanners() {
var oldName = "url('images/banners/" + bannerNames[bannerIndex] + "')";
oldname = "url('nosuch.jpg')";
document.getElementById("bannerBottom").style.backgroundImage = oldName;
blendPercent = 0; // Set opacity of top element to 0, so that we still see the old banner for a while
changeOpacity("bannerTop", blendPercent);
// changeOpacity("logo", 100); // But the logo must always be visible
bannerIndex++;
if (bannerIndex >= bannerNames.length)
bannerIndex = 0;
var newName = "url('images/banners/" + bannerNames[bannerIndex] + "')";
document.getElementById("bannerTop").style.backgroundImage = newName;
document.getElementById("bannerTop").title = bannerTitles[bannerIndex];
// Start blending images
blendID = setInterval(function() {blendBanners()}, fadeTime/numChanges);
};
// Don't let a user leave pay.shtml if he hasn't filled out the form. The warning will only be delivered to
// people who get to pay.shtml by way of membership.shtml. These are people who haven't completed the
// standard procedure fully.
function unloadHandler() {
return "You must fill out this form if you want to pay using PayPal!";
}
// Find user's name, email, and donation amount
function updateDonation() {
var e;
// To test w/ PayPal's sandbox, the URL must look like http://www.trivalleystargazers.org/pay.shtml?sandbox
var usingSandbox = (window.location.search.substring(1) == "sandbox");
if (usingSandbox)
url = "https://www.sandbox.paypal.com/cgi-bin/webscr?business=treasurer-facilitator@trivalleystargazers.org";
else
url = "https://www.paypal.com/cgi-bin/webscr?business=treasurer@trivalleystargazers.org";
url += "&cmd=_cart¤cy_code=USD&upload=1";
e = document.getElementById("donation");
if (e.value == "")
e.value = "0";
var r = /^\$?[0-9]+\.?[0-9]?[0-9]?$/;
if (r.test(e.value)) {
e.value = e.value.replace(/\$/g, '');
addItem("Donation", e.value);
e.value = "$" + e.value;
}
else {
alert("Please enter a valid amount for the donation. " + e.value + " isn't valid.");
e.value = "$0";
item_count = 0; // Prevent accidentally calling PayPal
return;
};
}
// Find info about the user and how much he wants to donate. Create a URL that tells what the user
// wants, then call PayPal to make the donation.
function doPayPalDonation() {
var e;
item_count = 0;
// To test w/ PayPal's sandbox, the URL must look like http://www.trivalleystargazers.org/pay.shtml?sandbox
var usingSandbox = (window.location.search.substring(1) == "sandbox");
if (usingSandbox) {
url = "https://www.sandbox.paypal.com/cgi-bin/webscr?business=treasurer-facilitator@trivalleystargazers.org";
alert("Testing with PayPal's sandbox");
}
else
url = "https://www.paypal.com/cgi-bin/webscr?business=treasurer@trivalleystargazers.org";
url += "&cmd=_cart¤cy_code=USD&upload=1";
e = document.getElementById("donation");
if (e.value == "")
e.value = "0"; // An error, but it will be caught below
var r = /^\$?[0-9]+\.?[0-9]?[0-9]?$/;
if (r.test(e.value)) {
e.value = e.value.replace(/\$/g, '');
if (e.value <= 0) {
alert("The donation amount is not valid.");
return;
}
addItem("Donation", e.value);
e.value = "$" + e.value;
}
else {
alert("Please enter a valid amount for the donation. " + e.value + " isn't valid.");
e.value = "$0";
item_count = 0; // Prevent accidentally calling PayPal
return;
};
// TBD value cannot be zereo? But for testing I've changed addItem to allow it.
e = document.getElementById("name");
// TBD: check for empty string
addItem(e.value, "0");
e = document.getElementById("email");
// TBD: check for empty string
addItem(e.value, "0");
e = document.getElementById("comment");
// TBD: check for empty string
addItem(e.value, "0");
// Call PayPal.
// TBD: snapshot's login name is hilary@snapshot.com
window.location.assign(url);
}
// Find what items the member wants to pay for. Compute total cost, and create a URL that tells PayPal
// what he wants.
function updateItems() {
var e;
item_count = 0;
total = 0;
// To test w/ PayPal's sandbox, the URL must look like http://www.trivalleystargazers.org/pay.shtml?sandbox
var usingSandbox = (window.location.search.substring(1) == "sandbox");
if (usingSandbox)
url = "https://www.sandbox.paypal.com/cgi-bin/webscr?business=treasurer-facilitator@trivalleystargazers.org";
else
url = "https://www.paypal.com/cgi-bin/webscr?business=treasurer@trivalleystargazers.org";
url += "&cmd=_cart¤cy_code=USD&upload=1";
e = document.getElementById("membershipType");
addItem(e.options[e.selectedIndex].text + " Membership", e.value);
e = document.getElementById("H2OKey");
if (e.checked)
addItem("H2O Key Deposit", e.value);
e = document.getElementById("H2OAccess");
if (e.checked)
addItem("H2O Yearly Access Fee", e.value);
e = document.getElementById("donation");
if (e.value == "")
e.value = "0";
var r = /^\$?[0-9]+\.?[0-9]?[0-9]?$/;
if (r.test(e.value)) {
e.value = e.value.replace(/\$/g, '');
addItem("Donation", e.value);
e.value = "$" + e.value;
}
else {
alert("Please enter a valid amount for the donation. " + e.value + " isn't valid.");
e.value = "$0";
item_count = 0; // Prevent accidentally calling PayPal
return;
};
// Special handling for the Other payment item
e = document.getElementById("other");
explanation = document.getElementById("explanation").value;
explanation = explanation.slice(0, 50); // Up to 127 characters OK, but playing it safe
otherValue = 0;
if (e.value == "")
e.value = "0";
var r = /^\$?[0-9]+\.?[0-9]?[0-9]?$/;
if (r.test(e.value)) {
e.value = e.value.replace(/\$/g, '');
otherValue = e.value;
e.value = "$" + e.value;
}
else {
alert("Please enter a valid amount for the Other expense. " + e.value + " isn't valid.");
e.value = "$0";
item_count = 0; // Prevent accidentally calling PayPal
return;
};
// Add the item even if the explanation is missing. We will catch that later.
addItem("Other", otherValue, explanation);
};
// Show the user the current total value of things being ordered
function updateTotal() {
updateItems(); // Computes global variable total (as well as the URL; but we don't use that)
e = document.getElementById("total");
e.value = "$"+total;
};