我试图在页面上嵌入以下表单，当人们按提交时，表单通过POST提交，然后页面向下滚动到下一张幻灯片。
然而，表单所基于的CMS会在提交表单时强制重定向，这显然会使用户远离我的页面。
如何防止表单重定向？我假设我必须通过e.preventDefault（）阻止提交;然后手动编写一些javascript来发布表单，但对如何做到这一点感到困惑。到目前为止，我的所有尝试都刚刚停止提交表格。
<form name="signup" class="bsd-signup-135" action="https://***" method="post" id="signup">
<div class="fieldset" id="bsd-field-country">
<div class="label"><label class="field">Country</label></div>
<div class="input">
<select id="country" name="country">
<option value=""></option>
<option value="AF">Afghanistan</option>
<option value="AL">Albania</option>
<option value="DZ">Algeria</option>
<option value="AS">American Samoa</option>
<option value="AD">Andorra</option>
<option value="AO">Angola</option>
<option value="AI">Anguilla</option>
<option value="AG">Antigua and Barbuda</option>
<option value="AR">Argentina</option>
<option value="AM">Armenia</option>
<option value="AW">Aruba</option>
<option value="AU">Australia</option>
<option value="AT">Austria</option>
<option value="AZ">Azerbaijan</option>
<option value="BS">Bahamas</option>
<option value="BH">Bahrain</option>
<option value="BD">Bangladesh</option>
<option value="BB">Barbados</option>
<option value="BY">Belarus</option>
<option value="BE">Belgium</option>
<option value="BZ">Belize</option>
<option value="BJ">Benin</option>
<option value="BM">Bermuda</option>
<option value="BT">Bhutan</option>
<option value="BO">Bolivia</option>
<option value="BA">Bosnia and Herzegovina</option>
<option value="BW">Botswana</option>
<option value="BR">Brazil</option>
<option value="VG">British Virgin Islands</option>
<option value="IO">British Indian Ocean Territory</option>
<option value="BN">Brunei</option>
<option value="BG">Bulgaria</option>
<option value="BF">Burkina Faso</option>
<option value="BI">Burundi</option>
<option value="KH">Cambodia</option>
<option value="CM">Cameroon</option>
<option value="CA">Canada</option>
<option value="CV">Cape Verde</option>
<option value="KY">Cayman Islands</option>
<option value="CF">Central African Republic</option>
<option value="TD">Chad</option>
<option value="CL">Chile</option>
<option value="CN">China</option>
<option value="CX">Christmas Island</option>
<option value="CO">Colombia</option>
<option value="KM">Comoros Islands</option>
<option value="CD">Congo, Democratic Republic of the</option>
<option value="CG">Congo, Republic of the</option>
<option value="CK">Cook Islands</option>
<option value="CR">Costa Rica</option>
<option value="CI">Cote D'ivoire</option>
<option value="HR">Croatia</option>
<option value="CU">Cuba</option>
<option value="CY">Cyprus</option>
<option value="CZ">Czech Republic</option>
<option value="DK">Denmark</option>
<option value="DJ">Djibouti</option>
<option value="DM">Dominica</option>
<option value="DO">Dominican Republic</option>
<option value="TP">East Timor</option>
<option value="EC">Ecuador</option>
<option value="EG">Egypt</option>
<option value="SV">El Salvador</option>
<option value="GQ">Equatorial Guinea</option>
<option value="ER">Eritrea</option>
<option value="EE">Estonia</option>
<option value="ET">Ethiopia</option>
<option value="FK">Falkland Islands (Malvinas)</option>
<option value="FO">Faroe Islands</option>
<option value="FJ">Fiji</option>
<option value="FI">Finland</option>
<option value="FR">France</option>
<option value="GF">French Guiana</option>
<option value="PF">French Polynesia</option>
<option value="TF">French Southern Territories</option>
<option value="GA">Gabon</option>
<option value="GM">Gambia</option>
<option value="GE">Georgia</option>
<option value="DE">Germany</option>
<option value="GH">Ghana</option>
<option value="GI">Gibraltar</option>
<option value="GR">Greece</option>
<option value="GL">Greenland</option>
<option value="GD">Grenada</option>
<option value="GP">Guadeloupe</option>
<option value="GU">Guam</option>
<option value="GT">Guatemala</option>
<option value="GN">Guinea</option>
<option value="GW">Guinea-Bissau</option>
<option value="GY">Guyana</option>
<option value="HT">Haiti</option>
<option value="VA">Holy See (Vatican City State)</option>
<option value="HN">Honduras</option>
<option value="HK">Hong Kong</option>
<option value="HU">Hungary</option>
<option value="IS">Iceland</option>
<option value="IN">India</option>
<option value="ID">Indonesia</option>
<option value="IR">Iran</option>
<option value="IQ">Iraq</option>
<option value="IE">Republic of Ireland</option>
<option value="IL">Israel</option>
<option value="IT">Italy</option>
<option value="JM">Jamaica</option>
<option value="JP">Japan</option>
<option value="JO">Jordan</option>
<option value="KZ">Kazakhstan</option>
<option value="KE">Kenya</option>
<option value="KI">Kiribati</option>
<option value="KR">South Korea</option>
<option value="XK">Kosovo</option>
<option value="KW">Kuwait</option>
<option value="KG">Kyrgyzstan</option>
<option value="LA">Laos</option>
<option value="LV">Latvia</option>
<option value="LB">Lebanon</option>
<option value="LS">Lesotho</option>
<option value="LR">Liberia</option>
<option value="LY">Libya</option>
<option value="LI">Liechtenstein</option>
<option value="LT">Lithuania</option>
<option value="LU">Luxembourg</option>
<option value="MO">Macau</option>
<option value="MK">Macedonia</option>
<option value="MG">Madagascar</option>
<option value="MW">Malawi</option>
<option value="MY">Malaysia</option>
<option value="MV">Maldives</option>
<option value="ML">Mali</option>
<option value="MT">Malta</option>
<option value="MH">Marshall Islands</option>
<option value="MQ">Martinique</option>
<option value="MR">Mauritania</option>
<option value="MU">Mauritius</option>
<option value="YT">Mayotte</option>
<option value="MX">Mexico</option>
<option value="FM">Micronesia</option>
<option value="MD">Moldova, Republic of</option>
<option value="MC">Monaco</option>
<option value="MN">Mongolia</option>
<option value="ME">Montenegro</option>
<option value="MS">Montserrat</option>
<option value="MA">Morocco</option>
<option value="MZ">Mozambique</option>
<option value="MM">Myanmar</option>
<option value="NA">Namibia</option>
<option value="NR">Nauru</option>
<option value="NP">Nepal</option>
<option value="NL">Netherlands</option>
<option value="AN">Netherlands Antilles</option>
<option value="NC">New Caledonia</option>
<option value="NZ">New Zealand</option>
<option value="NI">Nicaragua</option>
<option value="NE">Niger</option>
<option value="NG">Nigeria</option>
<option value="NU">Niue</option>
<option value="NF">Norfolk Island</option>
<option value="MP">Northern Mariana Islands</option>
<option value="NO">Norway</option>
<option value="OM">Oman</option>
<option value="PK">Pakistan</option>
<option value="PW">Palau</option>
<option value="PA">Panama</option>
<option value="PG">Papua New Guinea</option>
<option value="PY">Paraguay</option>
<option value="PE">Peru</option>
<option value="PH">Philippines</option>
<option value="PN">Pitcairn Island</option>
<option value="PL">Poland</option>
<option value="PT">Portugal</option>
<option value="PR">Puerto Rico</option>
<option value="QA">Qatar</option>
<option value="RE">Reunion</option>
<option value="RO">Romania</option>
<option value="RU">Russian Federation</option>
<option value="RW">Rwanda</option>
<option value="KN">Saint Kitts and Nevis</option>
<option value="LC">Saint Lucia</option>
<option value="VC">Saint Vincent and the Grenadines</option>
<option value="WS">Samoa</option>
<option value="SM">San Marino</option>
<option value="ST">Sao Tome and Principe</option>
<option value="SA">Saudi Arabia</option>
<option value="SN">Senegal</option>
<option value="RS">Serbia</option>
<option value="SC">Seychelles</option>
<option value="SL">Sierra Leone</option>
<option value="SG">Singapore</option>
<option value="SK">Slovakia</option>
<option value="SI">Slovenia</option>
<option value="SB">Solomon Islands</option>
<option value="SO">Somalia</option>
<option value="ZA">South Africa</option>
<option value="SS">South Sudan</option>
<option value="ES">Spain</option>
<option value="LK">Sri Lanka</option>
<option value="SH">St. Helena</option>
<option value="PM">St. Pierre and Miquelon</option>
<option value="SD">Sudan</option>
<option value="SR">Suriname</option>
<option value="SY">Syria</option>
<option value="SZ">Swaziland</option>
<option value="SE">Sweden</option>
<option value="CH">Switzerland</option>
<option value="TW">Taiwan</option>
<option value="TJ">Tajikistan</option>
<option value="TZ">Tanzania</option>
<option value="TH">Thailand</option>
<option value="TG">Togo</option>
<option value="TK">Tokelau</option>
<option value="TO">Tonga</option>
<option value="TT">Trinidad and Tobago</option>
<option value="TN">Tunisia</option>
<option value="TR">Turkey</option>
<option value="TM">Turkmenistan</option>
<option value="TC">Turks and Caicos Islands</option>
<option value="TV">Tuvalu</option>
<option value="UG">Uganda</option>
<option value="UA">Ukraine</option>
<option value="AE">United Arab Emirates</option>
<option value="GB" selected="selected">United Kingdom</option>
<option value="US">United States</option>
<option value="UY">Uruguay</option>
<option value="UZ">Uzbekistan</option>
<option value="VU">Vanuatu</option>
<option value="VE">Venezuela</option>
<option value="VN">Viet Nam</option>
<option value="VI">Virgin Islands (U.S.)</option>
<option value="WF">Wallis and Futuna Islands</option>
<option value="EH">Western Sahara</option>
<option value="YE">Yemen</option>
<option value="ZM">Zambia</option>
<option value="ZW">Zimbabwe</option>
</select>
</div>
</div>
<div class="fieldset" id="bsd-field-email">
<div class="label"><label class="field">Email</label></div>
<div class="input"><input type="email" class="text" size="48" id="email" name="email"></div>
</div>
<div class="fieldset" id="bsd-field-firstname">
<div class="label"><label class="field">First Name</label></div>
<div class="input"><input size="16" id="firstname" name="firstname" type="text"></div>
</div>
<div class="fieldset" id="bsd-field-lastname">
<div class="label"><label class="field">Last Name</label></div>
<div class="input"><input size="25" id="lastname" name="lastname" type="text"></div>
</div>
<div class="fieldset" id="bsd-field-custom-1963-group">
<div class="label"><label class="field">Radio buttons:</label></div>
<div class="input"> <input id="custom-1963_0" class="custom-1963" name="custom-1963" value="1" type="radio"><label for="custom-1963_0">Option 1</label> <input id="custom-1963_1" class="custom-1963" name="custom-1963" value="2" type="radio"><label for="custom-1963_1">Option 2</label> <input id="custom-1963_2" class="custom-1963" name="custom-1963" value="3" type="radio"><label for="custom-1963_2">Option 3</label> </div>
</div>
<div class="fieldset" id="bsd-field-email_opt_in">
<div class="label"><label class="field"></label></div>
<div class="input"><input id="email_opt_in" name="email_opt_in" type="checkbox" value="1"><label for="email_opt_in">Would you like to receive updates about our news, campaigns and appeals by email?</label></div>
</div>
<div class="fieldset" id="bsd-field-submit-btn">
<div class="label"><label class="field"></label></div>
<div class="input"><input name="submit-btn" value="Sign the petition" type="submit" id="submit_button"></div>
</div>
</form>
我使用javascript得到了这个，但不确定如何发布是否检查字段，或者如何发布无线电（特别是名称/ ID中带有连字符的无线电，由于CMS，我无法更改
$("#signup").submit(function(event) {
event.preventDefault();
var $form = $(this),
url = $form.attr("action");
var posting = $.post(url, {
country: $("#country").val(),
email: $("#email").val(),
firstname: $("#firstname").val(),
lastname: $("#lastname").val()
});
posting.done(function(data) {
alert("Success!");
});
});