JSFiddle - React, Tailwind, and code Playground
by kneidels
HTML
<div class="paymentRow well well-small" >
<div class="row-fluid formSep">
<div class="span3 yearHolder" id="yearHolder" style="">
<label>שנת תקציב <span class="ewmsg">*</span></label>
<select name="yearBudget" id="yearBudget" class="required yearBudget valid" title=" " aria-required="true" aria-invalid="false">
<option value="5780">תש"פ</option>
<option value="5779" selected="selected">תשע"ט</option>
<option value="5778">תשע"ח</option>
</select>
</div>
</div>
<div class="span3">
<div class=" groupUnit">
<div class="pull-right">
<label>נהנים <span class="ewmsg">*</span></label>
<select name="studyGroups" id="studyGroups" class="" title=" " multiple="multiple" >
<option value="446" selected="selected">ט '1</option>
<option value="447" selected="selected">ט' 2</option>
<option value="473" selected="selected">ט תקשורת</option>
<option value="455" selected="selected">י' 3</option>
</select><div class="chosen-container chosen-container-multi chosen-rtl" title=" " id="studyGroups_chosen" style="width: 220px;/*! color: red; */">gggg
</div>
</div>
</div>
...
CSS
div { border: 1px solid #333;}
JavaScript
$("#yearBudget").change(function(){
var parentRow = $(this).parents(".paymentRow");
var studyGroups = parentRow.find("select[name=studyGroups]");
var studyGroupsID = studyGroups.attr("id");
// studyGroups.css({'background-color':'red'});
studyGroups.css({'border':'1px solid #333'});
alert(studyGroupsID);
})