我有这段代码：
<script>
/* Set rates + misc */
var taxRate = 0.08;
var shippingRate = 0.00;
var fadeTime = 300;
/* Assign actions */
$('.product-quantity input').change( function() {
updateQuantity(this);
});
$('.product-removal button').click( function() {
removeItem(this);
});
/* Recalculate cart */
function recalculateCart()
{
var subtotal = 0;
/* Sum up row totals */
$('.product').each(function () {
subtotal += parseFloat($(this).children('.product-line-price').text());
});
/* Calculate totals */
var tax = subtotal * taxRate;
var shipping = (subtotal > 0 ? shippingRate : 0);
var total = subtotal + tax + shipping;
/* Update totals display */
$('.totals-value').fadeOut(fadeTime, function() {
$('#cart-subtotal').html(subtotal.toFixed(2));
$('#cart-tax').html(tax.toFixed(2));
$('#cart-shipping').html(shipping.toFixed(2));
$('#cart-total').html(total.toFixed(2));
if(total == 0){
$('.checkout').fadeOut(fadeTime);
}else{
$('.checkout').fadeIn(fadeTime);
}
$('.totals-value').fadeIn(fadeTime);
});
}
/* Update quantity */
function updateQuantity(quantityInput)
{
/* Calculate line price */
var productRow = $(quantityInput).parent().parent();
var price = parseFloat(productRow.children('.product-price').text());
var quantity = $(quantityInput).val();
var linePrice = price * quantity;
/* Update line price display and recalc cart totals */
productRow.children('.product-line-price').each(function () {
$(this).fadeOut(fadeTime, function() {
$(this).text(linePrice.toFixed(2));
recalculateCart();
$(this).fadeIn(fadeTime);
});
});
}
/* Remove item from cart */
function removeItem(removeButton)
{
/* Remove row from DOM and recalc cart total */
var productRow = $(removeButton).parent().parent();
productRow.slideUp(fadeTime, function() {
productRow.remove();
recalculateCart();
});
}
//@ sourceURL=pen.js
</script>
完整的演示可以在这里观看： http://codepen.io/justinklemm/pen/zAdoJ
¿我可以用paypal用jquery结账按钮付款吗？
实施例
支付总额：使用Paypal支付90.57美元
我的代码按钮paypal：
<input class="checkout" type="image" src="https://www.paypal.com/en_US/i/btn/btn_xpressCheckout.gif" border="0" name="submit" style="vertical-align:middle" alt="PayPal">
感谢。
答案 0 :(得分：0)
也许这会有所帮助，试着玩弄它。
<SCRIPT TYPE="text/javascript">
function MM_goToURL() { //v3.0
var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}
function Dollar (val) { // force to valid dollar amount
var str,pos,rnd=0;
if (val < .995) rnd = 1; // for old Netscape browsers
str = escape (val*1.0 + 0.005001 + rnd); // float, round, escape
pos = str.indexOf (".");
if (pos > 0) str = str.substring (rnd, pos + 3);
return str;
}
function ReadForm (obj1) { // process un-named selects
var i,j,amt,des,obj,pos,tok,val;
var ary = new Array ();
amt = obj1.baseamt.value*1.0; // base amount
des = obj1.basedes.value; // base description
for (i=0; i<obj1.length; i++) { // run entire form
obj = obj1.elements[i]; // a form element
if (obj.type == "select-one" && // just get selects
obj.name == "") { // must be un-named
pos = obj.selectedIndex; // which option selected
val = obj.options[pos].value; // selected value
ary = val.split (" "); // break apart
for (j=0; j<ary.length; j++) { // look at all items
// first we do single character tokens...
if (ary[j].length < 2) continue;
tok = ary[j].substring (0,1); // first character
val = ary[j].substring (1); // get data
if (tok == "@") amt = val * 1.0;
if (tok == "+") amt = amt + val*1.0;
if (tok == "%") amt = amt + (amt * val/100.0);
if (tok == "#") { // record item number
if (obj1.item_number) obj1.item_number.value = val;
ary[j] = ""; // zap this array element
}
// Now we do 3-character tokens...
if (ary[j].length < 4) continue;
tok = ary[j].substring (0,3); // first 3 chars
val = ary[j].substring (3); // get data
if (tok == "s1=") { // value for shipping
if (obj1.shipping) obj1.shipping.value = val;
ary[j] = ""; // clear it out
}
if (tok == "s2=") { // value for shipping2
if (obj1.shipping2) obj1.shipping2.value = val;
ary[j] = ""; // clear it out
}
}
val = ary.join (" "); // rebuild val with what's left
if (des.length == 0) des = val; // 1st storage?
else des = des + ", " + val; // nope, accumulate value
}
}
obj1.item_name.value = des;
obj1.amount.value = Dollar (amt);
if (obj1.tot) obj1.tot.value = "$" + Dollar (amt);
}
</SCRIPT><FORM id=viewcart name=viewcart action=https://www.paypal.com/cgi-bin/webscr
method=post>
</FORM>
<FORM onSubmit="this.target = 'paypal'; ReadForm (this.form);"
action=https://www.paypal.com/cgi-bin/webscr method=post>
<P>
<INPUT type=hidden value=_cart name=cmd>
<INPUT type=hidden value=1 name=add>
<INPUT type=hidden value=my@email.com name=business>
<INPUT type=hidden name=item_name>
<INPUT type=hidden name=item_number>
<INPUT type=hidden name=amount>
<INPUT type=hidden value=USD name=currency_code>
<INPUT type=hidden value=USD name=lc>
<INPUT type=hidden value=00 name=shipping>
<INPUT type=hidden value=00.00 name=baseamt>
<INPUT type=hidden VALUE="itemname" name=basedes>
<INPUT TYPE="hidden" NAME="on0" VALUE="Details">
<INPUT TYPE="hidden" NAME="os0" VALUE="moredetails" MAXLENGTH="800">
<BR>
<BR>
</P>
<TABLE WIDTH="400px" BORDER="0" CELLPADDING="0" CELLSPACING="0" align="right">
<TR>
<TD ALIGN="left">
<p class="heading"> </p>
<p class="main"> dropdown1</p>
<p class="heading"> </p>
</TD>
<TD>
<SELECT STYLE="WIDTH: 240px" onChange="ReadForm (this.form);">
<OPTION selected>Please select </OPTION>
<OPTION VALUE="option1 +125.00">option1</OPTION>
<OPTION VALUE="option2 +90.00">option2</OPTION>
<OPTION VALUE="option3 +40.00">option3</OPTION>
</SELECT>
</TD>
</TR>
<TR>
<TD ALIGN="left">
<p class="heading"> </p>
<p class="main"> dropdown2</p>
<p class="heading"> </p>
</TD>
<TD>
<SELECT STYLE="WIDTH: 240px" onChange="ReadForm (this.form);">
<OPTION selected>Please select </OPTION>
<OPTION VALUE="option1 +55.00">option1</OPTION>
<OPTION VALUE="option2 +99.00">option2</OPTION>
<OPTION VALUE="option3 +44.00">option3</OPTION>
</SELECT>
</TD>
</TR>
<tr>
<TR>
<TD ALIGN="left">
<p class="main"> </p>
<p class="main"> Price</p>
<p class="main"> </p>
</TD>
<TD ALIGN="left">
<INPUT class=nbor size=8 value=00.00 name=tot>
</TD>
</TR>
<TD align="left">
<label for="submit"></label>
<TD align="left">
<input type="image" src="/addtocart2.png" name="submit" id="submit" value="submit" >
</div>
</div></td>
</tr>
</table>
</table>
</form>
</TABLE>
</FORM>
</div>