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<!DOCTYPE html><html><head><script src="http://code.jquery.com/jquery-1.9.1.min.js"></script><meta charset=utf-8 /><title>How to check element is empty Demo</title>​​​</head><body>   <div class="formBody"><input  name="form[contact_person_gender]" type="radio" value="Herr" id="contact_person_gender0"  /><label for="contact_person_gender0">Herr</label><input  name="form[contact_person_gender]" type="radio" value="Frau" id="contact_person_gender1"  /><label for="contact_person_gender1">Frau</label></div>    <div class="formBody"><input  name="form[cntact_person_gender1]" type="radio" value="Herr" id="cntact_person_gender10"  /><label for="cntact_person_gender10">Herr</label><input  name="form[cntact_person_gender1]" type="radio" value="Frau" id="cntact_person_gender11"  /><label for="cntact_person_gender11">Frau</label></div>  </body></html>​​

body {

$('[name*="contact_person_gender"]').click( function() {

Console

:help
:reset - destroy state and start afresh :history - list current session history :load <url> - to inject new DOM :load <script_url> - to inject external library load also supports following shortcuts:
jquery, underscore, prototype, mootools, dojo, rightjs, coffeescript, yui.
eg. :load jquery :clear - to clear contents of the console :about jsconsole

Output Auto-run JS

Shortcut	Action
ctrl + [num]	Toggle nth panel
Require alt key, leaving cmd+1, 2 etc for tab switching.
ctrl + 0	Close focused panel
ctrl + enter	Re-render output. If console visible: run JS in console
Ctrl + l	Clear the console
ctrl + /	Toggle comment on selected lines
ctrl + ]	Indents selected lines
ctrl + [	Unindents selected lines
tab	Code complete & Emmet expand
ctrl + shift + L	Beautify code in active panel
ctrl + s	Save & lock current Bin from further changes
ctrl + shift + s	Open the share options
ctrl + y	Archive Bin
Complete list of JS Bin shortcuts

URL	Action
/	Show the full rendered output. This content will update in real time as it's updated from the /edit url.
/edit	Edit the current bin
/watch	Follow a Code Casting session
/embed	Create an embeddable version of the bin
/latest	Load the very latest bin (/latest goes in place of the revision)
/[username]/last	View the last edited bin for this user
/[username]/last/edit	Edit the last edited bin for this user
/[username]/last/watch	Follow the Code Casting session for the latest bin for this user
/quiet	Remove analytics and edit button from rendered output
.js	Load only the JavaScript for a bin
.css	Load only the CSS for a bin
Except for username prefixed urls, the url may start with http://jsbin.com/abc and the url fragments can be added to the url to view it differently.

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