Javascript function response in Jquery not working - php

Question

I have a form that using ajax to post the comment to video_comment.php then show up the comment live on video page.
This is my jquery code:
$("input[id*='post_video_playallcomment_']").livequery('click', function(event) {
event.preventDefault();
var video_msg = $("#post_message");
var input_id = $(this).attr('id');
var id_split = input_id.split('_');
var video_id = id_split[3];
var comment = $("textarea[id='video_comment']").val();
var response_messages = '#video_response';
if ( comment == '' ) {
video_msg.fadeIn();
return false;
}
video_msg.hide();
user_posting(response_messages, '<?php echo $lang['600']; ?>', 1);
reset_chars_counter();
$.post(base_url + '/video_comment.php', { video_id: video_id, comment: comment },
function(response) {
if ( response.msg != '' ) {
$(response_messages).hide();
user_posting(response_messages, response.msg);
$("textarea[id='video_comment']").val('');
} else {
$(response_messages).hide();
user_response(response_messages, '<?php echo $lang['587']; ?>');
$(".no_comments").hide();
$("textarea[id='video_comment']").val('');
var bDIV = $("#comments_delimiter");
var cDIV = document.createElement("div");
$(cDIV).html(response.code);
$(bDIV).after(cDIV);
}
}, "json");
});
On video_comment.php, this is the response.code to show up the comment live on video page.
echo 'text...
echo '<div id="commentplayer"></div>';
echo '<script type="text/javascript">';
echo 'jwplayer("commentplayer").setup({';
echo 'file: "...url",';
echo 'width: "300",';
echo 'height: "225",';
echo 'provider: "http",';
echo 'startparam: "start",';
echo 'wmode: "transparent",';
echo 'controls: "true",';
echo 'stretching: "uniform",';
echo 'primary: "flash",';
echo 'autostart: "false",';
echo 'ga: {}';
echo '});';
echo '</script>';
echo 'text...
I have no problem to get 'text...', but i can't get '<script type="text/javascript">function...</script>' to show up live on video page.
Help please...

Answer 1

instead of placing javascript code in the php return, why dont you place it in the .post response?
$("input[id*='post_video_comment']").click(function() {
$.post('video_comment.php', function(response) {
$('#comment').html(response.code);
//place javascript code here
}, "json");
});
or placing a onload before your js code
$str = '<div id="commentplayer"></div>
<script type="text/javascript">
window.onload=(function() {
jwplayer("commentplayer").setup({
file: "...url",
width: "300",
height: "225",
provider: "http",
startparam: "start",
wmode: "transparent",
controls: "true",
stretching: "uniform",
primary: "flash",
autostart: "false",
ga: {}
});
});
</script>';
echo $str;