您看到的第一个脚本不起作用，因为包含“t1_t2_c_p_addressBook_input_txbCompanyName”的“tr”元素没有指定的ID。
第二个脚本确实有效，因为有一个“tr”元素“t1_t2_c_p_addressBook_input_txbFirstName”，其分配的ID为“t1_t2_c_p_addressBook_input_rowFirstName”。如何让第一个脚本工作？我无法改变元素的元素或ID。我只能插入一个允许我覆盖的脚本。这是电子商务平台的一部分，我只能控制HTML模板并将自定义消息添加到不同的页面。该脚本将添加到结帐流程的“送货”页面上的自定义消息中。
换句话说，我需要在不使用任何“tr”的情况下，使ID为“t1_t2_c_p_addressBook_input_txbCompanyName”的文本输入字段（我无法控制）。
$(document).ready(function () {
var $companyname = $('#t1_t2_c_p_addressBook_input_txbCompanyName');
$companyname.parent('td').prev('td').prepend('<span style="color: Red;">*</span>');
$('input#t1_t2_c_p_addressBook_input_btnSave').click(function (e) {
if($companyname.val().length < 1) {
e.preventDefault();
$('span#mainContent').parent().prepend('<div class="MessageBox" id="t1_t2_c_vs" <img align="left" src="/Images/icoExclamation.gif">Please correct the following:<ul><li>Company Name is a required field</li></ul></div>');
}
});
});
$(document).ready(function () {
var $firstname = $('#t1_t2_c_p_addressBook_input_rowFirstName td.valueCell input');
$firstname.parent('td').prev('td').prepend('<span style="color: Red;">*</span>');
$('input#t1_t2_c_p_addressBook_input_btnSave').click(function (e) {
if($firstname.val().length < 1) {
e.preventDefault();
$('span#mainContent').parent().prepend('<div class="MessageBox" id="t1_t2_c_vs" <img align="left" src="/Images/icoExclamation.gif">Please correct the following:<ul><li>First Name is a required field</li></ul></div>');
}
});
});
以下是所有HTML。这个特定的HTML是由Web应用程序动态生成的。
<div id="t1_t2_c_p_addressBook_pnlEdit" style="padding:4px;width:505px;margin-top:1em;">
<span id="t1_t2_c_p_addressBook_input_lblHeading" style="font-weight:bold;">Create a New Shipping Address:</span>
<div>
<span id="" style="color:Red;">*</span><span style="font-size:8pt;"> = required field</span>
</div>
<table id="t1_t2_c_p_addressBook_input_tblAddress" cellspacing="0" cellpadding="2" border="0" style="border-collapse:collapse;">
<tr id="t1_t2_c_p_addressBook_input_rowAddressName">
<td class="labelCell" valign="top">
Address Name:
</td>
<td align="right" valign="top" style="width:6px;">
<span id="" style="color:Red;">*</span>
</td>
<td class="valueCell" valign="bottom">
<input name="t1:t2:c:p:addressBook:input:txbAddressName" type="text" id="t1_t2_c_p_addressBook_input_txbAddressName" style="width:286px;"/>
<img src="/Images/help.gif" border="0" style="height:16px;width:16px;"/>
<div class="HelpPopup" style="width:400px;visibility:hidden;position:absolute;z-index:999;background:white;">
Examples: Work, Home
</div>
</td>
</tr>
<tr id="t1_t2_c_p_addressBook_input_rowFirstName">
<td class="labelCell" valign="top">
First Name:
</td>
<td align="right" valign="top" style="width:6px;">
<span id="firstNameReq" style="color:Red;">*</span>
</td>
<td class="valueCell" valign="bottom">
<input name="t1:t2:c:p:addressBook:input:txbFname" type="text" id="t1_t2_c_p_addressBook_input_txbFname" style="width:286px;"/>
</td>
</tr>
<tr id="t1_t2_c_p_addressBook_input_rowLastName">
<td class="labelCell" valign="top">
Last Name:
</td>
<td align="right" valign="top" style="width:6px;">
<span id="lastNameReq" style="color:Red;">*</span>
</td>
<td class="valueCell" valign="bottom">
<input name="t1:t2:c:p:addressBook:input:txbLname" type="text" id="t1_t2_c_p_addressBook_input_txbLname" style="width:286px;"/>
</td>
</tr>
<tr>
<td class="labelCell" valign="top">
Company Name:
</td>
<td align="right" valign="top" style="width:6px;">
</td>
<td class="valueCell" valign="bottom">
<input name="t1:t2:c:p:addressBook:input:txbCompanyName" type="text" id="t1_t2_c_p_addressBook_input_txbCompanyName" style="width:286px;"/>
</td>
</tr>
<tr>
<td class="labelCell" valign="top">
Address Line 1:
</td>
<td align="right" valign="top" style="width:6px;">
<span id="" style="color:Red;">*</span>
</td>
<td class="valueCell" valign="bottom">
<input name="t1:t2:c:p:addressBook:input:txbStreet1" type="text" id="t1_t2_c_p_addressBook_input_txbStreet1" style="width:286px;"/>
</td>
</tr>
<tr>
<td class="labelCell" valign="top">
Address Line 2:
</td>
<td align="right" valign="top" style="width:6px;">
</td>
<td class="valueCell" valign="bottom">
<input name="t1:t2:c:p:addressBook:input:txbStreet2" type="text" id="t1_t2_c_p_addressBook_input_txbStreet2" style="width:286px;"/>
</td>
</tr>
<tr>
<td class="labelCell" valign="top">
City:
</td>
<td align="right" valign="top" style="width:6px;">
<span id="" style="color:Red;">*</span>
</td>
<td class="valueCell" valign="bottom">
<input name="t1:t2:c:p:addressBook:input:txbCity" type="text" id="t1_t2_c_p_addressBook_input_txbCity" style="width:286px;"/>
</td>
</tr>
<tr id="t1_t2_c_p_addressBook_input_rowStateRegion">
<td class="labelCell" valign="top">
State/Region/Province:
</td>
<td align="right" valign="top" style="width:6px;">
<span id="stateReq" style="color:Red;">*</span>
</td>
<td class="valueCell" valign="bottom">
<select name="t1:t2:c:p:addressBook:input:ddlState" id="t1_t2_c_p_addressBook_input_ddlState">
<option selected="selected" value=""></option>
<option value="AL">Alabama</option>
<option value="AK">Alaska</option>
<option value="AZ">Arizona</option>
<option value="AR">Arkansas</option>
<option value="CA">California</option>
<option value="CO">Colorado</option>
<option value="CT">Connecticut</option>
<option value="DE">Delaware</option>
<option value="DC">District of Columbia</option>
<option value="FL">Florida</option>
<option value="GA">Georgia</option>
<option value="HI">Hawaii</option>
<option value="ID">Idaho</option>
<option value="IL">Illinois</option>
<option value="IN">Indiana</option>
<option value="IA">Iowa</option>
<option value="KS">Kansas</option>
<option value="KY">Kentucky</option>
<option value="LA">Louisiana</option>
<option value="ME">Maine</option>
<option value="MD">Maryland</option>
<option value="MA">Massachusetts</option>
<option value="MI">Michigan</option>
<option value="MN">Minnesota</option>
<option value="MS">Mississippi</option>
<option value="MO">Missouri</option>
<option value="MT">Montana</option>
<option value="NE">Nebraska</option>
<option value="NV">Nevada</option>
<option value="NH">New Hampshire</option>
<option value="NJ">New Jersey</option>
<option value="NM">New Mexico</option>
<option value="NY">New York</option>
<option value="NC">North Carolina</option>
<option value="ND">North Dakota</option>
<option value="OH">Ohio</option>
<option value="OK">Oklahoma</option>
<option value="OR">Oregon</option>
<option value="PA">Pennsylvania</option>
<option value="RI">Rhode Island</option>
<option value="SC">South Carolina</option>
<option value="SD">South Dakota</option>
<option value="TN">Tennessee</option>
<option value="TX">Texas</option>
<option value="UT">Utah</option>
<option value="VT">Vermont</option>
<option value="VA">Virginia</option>
<option value="WA">Washington</option>
<option value="WV">West Virginia</option>
<option value="WI">Wisconsin</option>
<option value="WY">Wyoming</option>
<option value="AA">Armed Forces Americas (AA)</option>
<option value="AE">Armed Forces Africa/Canada/Europe/Middle East (AE)</option>
<option value="AP">Armed Forces Pacific (AP)</option>
<option value="AS">American Samoa</option>
<option value="FM">Federated States of Micronesia</option>
<option value="GU">Guam</option>
<option value="MH">Marshall Islands</option>
<option value="MP">Northern Mariana Islands</option>
<option value="PW">Palau</option>
<option value="PR">Puerto Rico</option>
<option value="VI">Virgin Islands</option>
</select>
<select name="t1:t2:c:p:addressBook:input:ddlStateDutch" id="t1_t2_c_p_addressBook_input_ddlStateDutch">
<option selected="selected" value=""></option>
<option value="Drenthe">Drenthe</option>
<option value="Flevoland">Flevoland</option>
<option value="Friesland">Friesland</option>
<option value="Gelderland">Gelderland</option>
<option value="Groningen">Groningen</option>
<option value="Limburg">Limburg</option>
<option value="Noord-Brabant">Noord-Brabant</option>
<option value="Noord-Holland">Noord-Holland</option>
<option value="Overijssel">Overijssel</option>
<option value="Utrecht">Utrecht</option>
<option value="Zeeland">Zeeland</option>
<option value="Zuid-Holland">Zuid-Holland</option>
</select>
<select name="t1:t2:c:p:addressBook:input:ddlStateCA" id="t1_t2_c_p_addressBook_input_ddlStateCA">
<option selected="selected" value=""></option>
<option value="AB">Alberta</option>
<option value="BC">British Columbia</option>
<option value="MB">Manitoba</option>
<option value="NB">New Brunswick</option>
<option value="NL">Newfoundland and Labrador</option>
<option value="NT">Northwest Territories</option>
<option value="NS">Nova Scotia</option>
<option value="NU">Nunavut</option>
<option value="ON">Ontario</option>
<option value="PE">Prince Edward Island</option>
<option value="QC">Quebec</option>
<option value="SK">Saskatchewan</option>
<option value="YT">Yukon</option>
</select>
<input name="t1:t2:c:p:addressBook:input:txbStateAlt" type="text" id="t1_t2_c_p_addressBook_input_txbStateAlt"/>
</td>
</tr>
<tr id="t1_t2_c_p_addressBook_input_rowZipCode">
<td class="labelCell" valign="top">
Zip/Postal Code:
</td>
<td align="right" valign="top" style="width:6px;">
<span id="zipRequired" style="color:Red;">*</span>
</td>
<td class="valueCell" valign="bottom">
<input name="t1:t2:c:p:addressBook:input:txbZip" type="text" id="t1_t2_c_p_addressBook_input_txbZip" style="width:286px;"/>
</td>
</tr>
<tr>
<td class="labelCell" valign="top">
Country:
</td>
<td align="right" valign="top" style="width:6px;">
<span id="" style="color:Red;">*</span>
</td>
<td class="valueCell" valign="bottom">
<select name="t1:t2:c:p:addressBook:input:ddlCountry" id="t1_t2_c_p_addressBook_input_ddlCountry" onchange="$451.setRequiredFields();">
<option selected="selected" value="US">United States of America</option>
<option value="AF">Afghanistan</option>
<option value="AX">Åland Islands</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="AQ">Antarctica</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="BV">Bouvet Island</option>
<option value="BR">Brazil</option>
<option value="IO">British Indian Ocean Territory</option>
<option value="BN">Brunei Darussalam</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 Australia</option>
<option value="CC">Cocos Keeling Islands</option>
<option value="CO">Colombia</option>
<option value="KM">Comoros</option>
<option value="CG">Congo</option>
<option value="CD">Congo, D.R.</option>
<option value="CK">Cook Islands</option>
<option value="CR">Costa Rica</option>
<option value="CI">Cote D'Ivoire Ivory Coast</option>
<option value="HR">Croatia Hrvatska</option>
<option value="CU">Cuba</option>
<option value="BY">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="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="FO">Faeroe Islands</option>
<option value="FK">Falkland Islands Malvinas</option>
<option value="FJ">Fiji</option>
<option value="FI">Finland</option>
<option value="FR">France</option>
<option value="FX">France, Metropolitan</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="HM">Heard and McDonald Is.</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="IM">Isle of Man</option>
<option value="IE">Ireland</option>
<option value="IL">Israel</option>
<option value="IT">Italy</option>
<option value="JM">Jamaica</option>
<option value="JP">Japan</option>
<option value="JE">Jersey</option>
<option value="JO">Jordan</option>
<option value="KZ">Kazakhstan</option>
<option value="KE">Kenya</option>
<option value="KI">Kiribati</option>
<option value="KP">Korea North</option>
<option value="KR">Korea South</option>
<option value="KW">Kuwait</option>
<option value="KG">Kyrgyzstan</option>
<option value="LA">Lao P.Dem.R.</option>
<option value="LV">Latvia</option>
<option value="LB">Lebanon</option>
<option value="LS">Lesotho</option>
<option value="LR">Liberia</option>
<option value="LY">Libyan Arab Jamahiriya</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</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="PS">Palestinian Territory, Occupied</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</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="SH">Saint Helena</option>
<option value="KN">Saint Kitts and Nevis</option>
<option value="LC">Saint Lucia</option>
<option value="PM">Saint Pierre and Miquelon</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="GS">S. Georgia & S. Sandwich Is.</option>
<option value="ES">Spain</option>
<option value="LK">Sri Lanka</option>
<option value="SD">Sudan</option>
<option value="SR">Suriname</option>
<option value="SJ">Svalbard & Jan Mayen Is.</option>
<option value="SZ">Swaziland</option>
<option value="SE">Sweden</option>
<option value="CH">Switzerland</option>
<option value="SY">Syrian Arab Rep.</option>
<option value="TW">Taiwan</option>
<option value="TJ">Tajikistan</option>
<option value="TZ">Tanzania</option>
<option value="TH">Thailand</option>
<option value="TG">Timor-Leste</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="TU">Tuvalu</option>
<option value="UG">Uganda</option>
<option value="UA">Ukraine</option>
<option value="GB">United Kingdom</option>
<option value="AE">United Arab Emirates</option>
<option value="UM">US Minor Outlying Is.</option>
<option value="UY">Uruguay</option>
<option value="UZ">Uzbekistan</option>
<option value="VU">Vanuatu</option>
<option value="VC">Vatican City State</option>
<option value="VE">Venezuela</option>
<option value="VN">Viet Nam</option>
<option value="VG">Virgin Islands British</option>
<option value="VI">Virgin Islands US</option>
<option value="WF">Wallis and Futuna Islands</option>
<option value="EH">Western Sahara</option>
<option value="YE">Yemen</option>
<option value="YU">Yugoslavia</option>
<option value="ZM">Zambia</option>
<option value="ZW">Zimbabwe</option>
</select>
</td>
</tr>
<tr id="t1_t2_c_p_addressBook_input_rowPhone">
<td class="labelCell" valign="top">
Phone:
</td>
<td align="right" valign="top" style="width:6px;">
<span id="phoneReq" style="color:Red;">*</span>
</td>
<td class="valueCell" valign="bottom">
<input name="t1:t2:c:p:addressBook:input:txbPhone" type="text" id="t1_t2_c_p_addressBook_input_txbPhone" style="width:286px;"/>
</td>
</tr>
<tr id="t1_t2_c_p_addressBook_input_rowBilling">
<td colspan="3">
<input id="t1_t2_c_p_addressBook_input_cxbBilling" type="checkbox" name="t1:t2:c:p:addressBook:input:cxbBilling" onclick="$451.setRequiredFields();"/><label for="t1_t2_c_p_addressBook_input_cxbBilling">Save to Billing Address Book</label>
</td>
</tr>
<tr id="t1_t2_c_p_addressBook_input_rowAdditionalFields">
<td colspan="3">
</td>
</tr>
</table>
</div>