jquery - javascript getElementById start with -

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i want select div start * change display: block display:hidden

function select_to_text(a) {    var = '#' + a;    var aa = $(as).val();    if (aa == "0") {} else {      //var $eles = $(":*[name^='personal_family_type_']").css("background-color","yellow");      document.getelementbyid(a + "_" + aa + "_block").style.display = 'block';    }  }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>  <div class="form-group">    <label for="personal_family_type" class="control-label col-sm-2">type</label>    <div class="col-sm-10">      <select size="1" id="personal_family_type" name="personal_family_type" class="form-control btn btn-primary" onchange="select_to_text('personal_family_type')">        <option value="0">----</option>        <option value="wife">wife</option>        <option value="husband">husband</option>        <option value="son">son</option>        <option value="all">show all</option>      </select>      <div id="personal_family_type_wife_block" style="display :none">        wife      </div>      <div id="personal_family_type_husband_block" style="display :none">        husband      </div>      <div id="personal_family_type_son_block" style="display :none">        son      </div>    </div>  </div>

here solution done in jquery. remove onclick html element.

$( document ).ready(function() {    $('#personal_family_type').on('click', function() {        $("#"+this.id + "_" + this.value + "_block").toggle();    }); });

here demo


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