Hidding field and graphic

part of form
I have a form with a checkbox then a second field to select type
I would like to Hide the type field and the graphic if the checkbox is left unticked
In my before display field I have:
$pageObject->setProxyValue("gloves",$pageObject->getMasterRecord(gloves));
In my Javascript Onload event I have:
if(proxy['yourCheckboxName']==Yes){

pageObj.showField("gloveN");

}

else

{

pageObj.hideField("gloveN");

}
var ctrlHideMe = Runner.getControl(pageid, 'gloves');
ctrlHideMe.on('change', function(e) {
if (this.getValue()=='Yes'){
pageObj.showField("gloveN");

pageObj.show_image(image1);
} else {
pageObj.hideField("gloveN");

pageObj.hide_image(image1);
}
//Control reset

if (this.getValue()=='off'){
}

else {
var ctrlReset = Runner.getControl(pageid, 'gloveN');

ctrlReset.clear();
}})