html - Issue with JQuery onchange() event -

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so have drop-down list , text-box:

<table>                         <tr>                             <td>group name: </td>                             <td><%= html.dropdownlistfor(m => m.indicationcalculatorgroupid, dropdowndata.indicationsgroup(sessionmanager.company.entityid, icconstants.indicationscalculatorgrouptype), "", new { propertyname = "indicationcalculatorgroupid", onchange = "updatefield(this, false);groupnamechange();" })%></td>                         </tr>                         <tr id="newgroupnamerow">                             <td>new group name: </td>                             <td><%= html.textboxfor(m => m.indicationcalculatornewgroupname, new { @class = "economictextbox", propertyname = "indicationcalculatornewgroupname", onchange = "updatefield(this);" })%></td>                         </tr>                     </table>

i have jquery on page shows/hides text-box based on drop-down selection.

function groupnamechange()         {             $("#indicationcalculatorgroupid").change(function() {                 if ($("#indicationcalculatorgroupid option:selected").text() == 'create new group')                 {                     $("#newgroupnamerow").show();                 }                 else{                     $("#indicationcalculatornewgroupname").val('');                     $("#newgroupnamerow").hide();                 }             });         }

but seems first time change drop-down "create new group", text-box doesn't show or anything, it's when select other value , select "create new group" code start work.

what's not wired correctly?

try put code when page loaded:

$(function() {    $("#indicationcalculatorgroupid").change(function() {                 if ($("#indicationcalculatorgroupid option:selected").text() == 'create new group')                 {                     $("#newgroupnamerow").show();                 }                 else{                     $("#indicationcalculatornewgroupname").val('');                     $("#newgroupnamerow").hide();                 }             });   });

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