[jQuery] Very Strange !!! The same HTML code works well, but append() it not !!!

Mon, 07 Dec 2009 20:08:40 -0800 

<html>
<head>
    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/
jquery.js"></script>
    <SCRIPT LANGUAGE="JavaScript">
    <!--
        $(function(){
// /*
                        var html_video = ' \
                            <table id="tb_all" width="724px"> \
                                <tr> \
                                    <td valign="top"> \
                                        <table id="tb_video"
class="tb_width"> \
                                            <tr class="tb_head"> \
                                                <td>&nbsp</td> \
                                                <td>filename</td> \
                                                <td>len(s)</td> \
                                                <td>size(KB)</td> \
                                            </tr> \
                                        </table> \
                                    </td> \
                                                                </tr> \
                            </table>'

                        $("body").append( html_video );

                        var data =
                        [
                                {name: "1", len: "432", size: "321"},
                                {name: "2", len: "54543", size: "432"},
                                {name: "3", len: "3243", size: "432"},
                                {name: "4", len: "543", size: "432"},
                                {name: "5", len: "543", size: "654"},
                                {name: "6", len: "654", size: "654"},
                                {name: "7", len: "765", size: "654"},
                                {name: "8", len: "765", size: "765"},
                                {name: "9", len: "53", size: "654"}
                        ];

            var a = data;
            if ( a != null ){
                for(var i=0; i<a.length; i++){
                                        var d = a[i];
                    $("#tb_video").append(' \
                                        <tr> \
                                            <td><input
type="checkbox" /></td> \
                                            <td>' + d.name + '</td> \
                                            <td>' + d.len + '</td> \
                                            <td>' + d.size + '</td> \
                                        <tr> ');
                }
            }

                        $("#tb_video").closest("tr").append(' \
                                    <td width="80px" align="center"
style="vertical-align:top"> \
                                                                                
<input id="pl_bt_up" type="button" value="↑" /> \
                                                                                
<input id="pl_bt_down" type="button" value="↓" />
\
                                    </td> ');
// */
                $("#pl_bt_up").click(function() {
                        var $all = $("#tb_video tr");
                var $trs = $("#tb_video tr:has(input:checked)");
                if( $all.index($trs.get(0)) != 1 ){
                    $trs.each(function(){
                            $(this).prev().before($(this));
                    });
                }
                });

                $("#pl_bt_down").click(function() {
                var $all = $("#tb_video tr");
                var $trs = $("#tb_video tr:has(input:checked)");

                if( $all.index( $trs.get($trs.length-1) ) !=
$all.length-1 ){
                    for( i = $trs.length-1; i>=0; i-- ) {
                        var $item = $( $trs.get(i) );
                        $item.insertAfter($item.next());
                    }
                }
            });
        });
    -->

    </SCRIPT>
</head>
<body>
<!--
    <table id="tb_all" width="724px">
        <tr>
                        <td valign="top">
                                <table id="tb_video" class="tb_width">
                    <tr class="tb_head">
                        <td>&nbsp</td>
                        <td>filename</td>
                        <td>len(s)</td>
                        <td>size(KB)</td>
                    </tr>
                    <tr><td><input type="checkbox" /></td><td>1</
td><td>222</td><td>432</td></tr>
                    <tr><td><input type="checkbox" /></td><td>2</
td><td>333</td><td>543</td></tr>
                    <tr><td><input type="checkbox" /></td><td>3</
td><td>444</td><td>654</td></tr>
                    <tr><td><input type="checkbox" /></td><td>4</
td><td>555</td><td>765</td></tr>
                    <tr><td><input type="checkbox" /></td><td>5</
td><td>666</td><td>876</td></tr>
                    <tr><td><input type="checkbox" /></td><td>6</
td><td>777</td><td>432</td></tr>
                    <tr><td><input type="checkbox" /></td><td>7</
td><td>888</td><td>543</td></tr>
                    <tr><td><input type="checkbox" /></td><td>8</
td><td>999</td><td>265</td></tr>
                                </table>
                        </td>
            <td width="80px" align="center" style="vertical-
align:top">
                <input id="pl_bt_up" type="button" value="↑" />
                <input id="pl_bt_down" type="button" value="↓" />
            </td>
                </tr>
    </table>
-->
</body>
</html>

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