有一个订单表单，其中包含一个名为"Samenstelling"的字段集。该字段集包含一个下拉选择，其中包含名为"多少"的数字。
如果选择了数字2，则该字段集中的所有其他字段必须出现两次，如果选择了数字 3，则所有字段都必须以三重显示。
必须复制的字段集如下所示。此外，如果该字段是完整的并且填写了完整的表格，则必须邮寄到一个电子邮件地址。有人可以帮我吗？
<fieldset id="fbrp__15"><legend>Samenstelling</legend>
<div class="required"><label for="fbrp__201">How much</label>
<select class="cms_dropdown" name="cntnt01fbrp__201">
<option value=""> Selecteer één</option>
<option value="1" selected="selected">1</option>
<option value="2">2</option>
<option value="3">3</option></select>
</div> <div class="required"><label for="fbrp__35">Soort Sub*</label><select class="copy" name="cntnt01fbrp__35"><option value=""> Selecteer één</option><option value="11">Beef</option><option value="17">Chicken Fajita</option><option value="13">Chicken Teriyaki</option><option value="14">Gegrilde Kipfilet</option><option value="1" selected="selected">Ham</option><option value="7">Italian B.M.T.</option><option value="5">Kalkoenfilet</option><option value="2">Kalkoenfilet & Ham</option><option value="3">Meatball Marinara</option><option value="8">Spicy Italian</option><option value="12">Steak & Cheese</option><option value="10">Subway Club</option><option value="15">Subway Melt</option><option value="4">Surimi Crab</option><option value="9">Tonijn</option><option value="6">Veggie Delite</option><option value="16">Veggie Patty</option></select></div> <div><label for="fbrp__36">Lengte</label><select class="copy" name="cntnt01fbrp__36"><option value=""> Selecteer één</option><option value="1" selected="selected">15 cm</option><option value="2">30 cm</option></select></div> <div><label for="fbrp__37">Soort brood</label><select class="copy" name="cntnt01fbrp__37"><option value=""> Selecteer één</option><option value="1" selected="selected">Bruin</option><option value="2">Sesam</option><option value="3">Honey Oat</option><option value="4">Wit</option><option value="5">Cheese & Oregano</option></select></div> <div><label for="fbrp__38">Getoast</label><select class="copy" name="cntnt01fbrp__38"><option value=""> Selecteer één</option><option value="1" selected="selected">Ja</option><option value="2">Nee</option></select>
</div><div><label for="fbrp__39"> Kaas</label><select class="copy" name="cntnt01fbrp__39"><option value=""> Selecteer één</option><option value="1" selected="selected" >Pittig</option><option value="2">Normaal</option><option value="3">Geen</option></select></div><div><label for="fbrp__40">Extra kaas*</label><select class="copy" name="cntnt01fbrp__40"><option value=""> Selecteer één</option><option value="1" selected="selected">Ja</option><option value="2">Nee</option></select>
</div><div><label for="fbrp__41">Extra bacon*</label><select class="copy" name="cntnt01fbrp__41"><option value=""> Selecteer één</option><option value="1" selected="selected">Ja</option><option value="2">Nee</option></select>
</div> <div><label for="fbrp__42">Dubbel vlees*</label><select class="copy" name="cntnt01fbrp__42"><option value=""> Selecteer één</option><option value="1" selected="selected">Ja</option><option value="2">Nee</option></select>
</div><div>* Bijkomende kosten.</div><div>Groenten</div> <div><div><input type="checkbox" class="copy" name="cntnt01fbrp__43[]" value="1" id="fbrp__43_1_0" />
<label for="fbrp__43_1_0">Sla</label></div><div><input type="checkbox" class="copy" name="cntnt01fbrp__43[]" value="2" id="fbrp__43_1_1" />
<label for="fbrp__43_1_1">Komkommer</label></div><div><input type="checkbox" class="copy" name="cntnt01fbrp__43[]" value="3" id="fbrp__43_1_2" />
<label for="fbrp__43_1_2">Tomaat</label></div><div><input type="checkbox" class="copy" name="cntnt01fbrp__43[]" value="4" id="fbrp__43_1_3" />
<label for="fbrp__43_1_3">Augurk</label></div><div><input type="checkbox" class="copy" name="cntnt01fbrp__43[]" value="5" id="fbrp__43_1_4" />
<label for="fbrp__43_1_4">Paprika</label></div><div><input type="checkbox" class="copy" name="cntnt01fbrp__43[]" value="6" id="fbrp__43_1_5" />
<label for="fbrp__43_1_5">Ui</label></div><div><input type="checkbox" class="copy" name="cntnt01fbrp__43[]" value="7" id="fbrp__43_1_6" />
<label for="fbrp__43_1_6">Pepers</label></div><div><input type="checkbox" class="copy" name="cntnt01fbrp__43[]" value="8" id="fbrp__43_1_7" />
<label for="fbrp__43_1_7">Olijven</label></div></div> <div>Saus</div> <div><div><input type="checkbox" class="copy" name="cntnt01fbrp__44[]" value="1" id="fbrp__44_1_0" />
<label for="fbrp__44_1_0">Chipotle Soutwest</label></div><div><input type="checkbox" class="copy" name="cntnt01fbrp__44[]" value="2" id="fbrp__44_1_1" />
<label for="fbrp__44_1_1">Honey Mustard</label></div><div><input type="checkbox" class="copy" name="cntnt01fbrp__44[]" value="3" id="fbrp__44_1_2" />
<label for="fbrp__44_1_2">Sweet Onion Mayonaise</label></div><div><input type="checkbox" class="copy" name="cntnt01fbrp__44[]" value="4" id="fbrp__44_1_3" />
<label for="fbrp__44_1_3">BBQ</label></div><div><input type="checkbox" class="copy" name="cntnt01fbrp__44[]" value="5" id="fbrp__44_1_4" />
<label for="fbrp__44_1_4">Sweet Chilli</label></div><div><input type="checkbox" class="copy" name="cntnt01fbrp__44[]" value="6" id="fbrp__44_1_5" />
<label for="fbrp__44_1_5">Knoflooksaus</label></div><div><input type="checkbox" class="copy" name="cntnt01fbrp__44[]" value="7" id="fbrp__44_1_6" />
<label for="fbrp__44_1_6">Geen</label></div></div> </fieldset>
你可以
这样做：
.HTML
看看我对新添加的div的小提琴
id="fieldcontwrapper" and id="fieldcont"
jQuery
$(".cms_dropdown").live('change', function () {
var howmuch = $(this).val();
var data = $("#fieldcont").html(); // DATA TO DUPLICATE
// IF SELECTED <= 1, THEN REMOVE ALL DUPLICATES EXCEPT 1
if (howmuch <= 1) {
$("#fieldcontwrapper #fieldcont").not(':first').remove();
} else {
for (var i = 0; i < howmuch; i++) {
$("#fieldcontwrapper")
.append('<div id="fieldcont"> <hr />' + data + '</div>');
}
}
});
jSFiddle： http://jsfiddle.net/ZACXL/1/