Зависимый раскрывающийся список в jQuery
$(function(){
// add a supercategory for the processor
var $supcat = $("#processor"),
$cat = $("#motherboard"),
$subcat = $(".subcat");
// duplicate the code for the processor -> motherboard
$supcat.on("change",function(){
var _rel = $(this).val();
$cat.find("option").attr("style","");
$cat.val("");
if(!_rel) return $cat.prop("disabled",true);
$cat.find("[rel~='"+_rel+"']").show();
$cat.prop("disabled",false);
});
$cat.on("change",function(){
var _rel = $(this).val();
$subcat.find("option").attr("style","");
$subcat.val("");
if(!_rel) return $subcat.prop("disabled",true);
$subcat.find("[rel~='"+_rel+"']").show();
$subcat.prop("disabled",false);
});
});
//////////////////////////////////////////////
.subcat option{
display:none;
}
.subcat option.label{
display:block;
}
/* useless template */
div{
margin-bottom:10px;
float:left;
width:100%;
}
label{
float:left;
width:200px;
margin-left:20px
}
p{
padding:5px 20px;
background-color:#f1f1f1;
float:left;
border:solid 1px #ccc;
color:#333;
text-transform:uppercase;
margin: 20px 0 30px;
}
body{
font-family:arial;
font-size:14px;
}
///////////////////////////////////////////////
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<h1>Made your PC:</h1>
<div>
<label>Processeor: </label><select id="processor" name="processor">
<option class="label" value>Select Processor</option>
<!-- Home Ware -->
<option value="P1">Processor 1</option>
<option value="P2">Processor 2</option>
<option value="P3">Processor 3</option>
<option value="P4">Processor 4</option>
</select>
</div>
<p><strong>Only compatible components will show.</strong></p>
<div>
<label>Select motherboard: </label><select id="motherboard" name="motherboard" class="subcat" disabled="disabled">
<option class="label" value>Select Motherboard</option>
<!-- Home Ware -->
<option rel="P1 P2" value="AS1">ASUS RAMPAGE V EXTREME</option>
<option rel="P2 P3" value="AS2">ASUS ATX DDR3 2600 LGA</option>
<option rel="P1 P3 P4" value="GB1">Gigabyte AM3+</option>
<option rel="P2 P4" value="MSI1">MSI ATX DDR3 2600 LGA 1150</option>
</select>
</div>
<div>
<label>Select RAM: </label> <select disabled="disabled" class="subcat" id="RAM" name="RAM">
<option class="label" value>RAM Memory</option>
<option rel="AS1 AS2 GB1" value="KI1">Kingston Value RAM</option>
<option rel="AS1 AS2 MSI1" value="P5KPL">P5KPL-AM SE</option>
<option rel="MSI1 GB1" value="960GM">960GM-VGS3 FX </option>
</select>
</div>
<div>
<label>Select Video Board: </label> <select disabled="disabled" class="subcat" id="video-card" name="video-card">
<option class="label" value>Video Card</option>
<option rel="MSI1 AS2" value="EVGA8400">EVGA GeForce 8400 GS</option>
<option rel="AS1" value="XFXAMD">XFX AMD Radeon HD 5450</option>
<option rel="MSI1 GB1" value="GTX750Ti">EVGA GeForce GTX 750Ti SC</option>
</select>
</div>
///////////////////////////////////////////
function updateSelects(obj1, obj2) {
var _rel = $(obj1).val();
obj2.find("option").attr("style","");
obj2.val("");
if(!_rel) return obj2.prop("disabled",true);
obj2.find("[rel~='"+_rel+"']").show();
obj2.prop("disabled",false);
}
SECRET MYSTERY