iframe and Ajax $.post -


i'm using $.post in function , i'm getting $ underfined. on onchange event in iframe. why guvign error?

 script type="text/javascript">  function photoupdate(id, name, value, chk) {     if(chk==false)     {         value="";     }     $.post('photoupdate.php', {id: id, name: name, value: value}) };  </script>    <input type="radio" name="primaryphoto" id="'.$recordid.'" value="yes" '.$checked.'   style="position:relative; left:-20px; bottom:5px; margin:0px"   onchange="photoupdate(this.id, this.name, this.value, this.checked)"/>

you need make sure iframe contents has own html/head/script src=jquery.js , whatnot.


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