Question

i dont know how can I make it work. I explain it.

I have some html code with jquery script.

html

<div id="accordion">
    <h3><a class="0" href="#">aparamenta modular</a></h3>
    <div>
    <div class="cat_content_ex">
        t&eacute;rmicos, diferenciales, etc ...
    </div>
    </div>
    <h3><a class="1" href="#">iluminaci&oacute;n</a></h3>
    <div>
    <div class="cat_content_ex">
        luminarias std y sistemas de LED, etc ...
    </div>
    </div>
</div>
<div id="target"></div> 

script

<script type="text/javascript">
    $('h3 > a').live('click', function(){
        var currentClass = $(this).attr('class');
        alert ( currentClass, 'alert window');
        if(currentClass == '0') {
            <?php
                include "./connection_catalogs.php";                
                $SQL = "SELECT * FROM first_table";
                $result = mysql_query($SQL);
                while ($row = mysql_fetch_array($result)) { ?>
                    $('#target').html($(<?php echo "<p class='ctg_fab'>" .$row['fabricante']. " : " .$row['titulo']. " : <a href='" .$row['url']. "'>descarga</a> : tipo - " .$row['filetype']. "</p>";?>)); 
                }
        } else if(ctg == '1') {
            <?php
                include "./connection_catalogs.php";                
                $SQL = "SELECT * FROM second_table";
                $result = mysql_query($SQL);
                while ($row = mysql_fetch_array($result)) { ?>
                    $('#target').html($(<?php echo "<p class='ctg_fab'>" .$row['fabricante']. " : " .$row['titulo']. " : <a href='" .$row['url']. "'>descarga</a> : tipo - " .$row['filetype']. "</p>";?>)); 
                }
                }
            ?>
        }
});
</script>

user click in first header of accordion and show the content for sql table named ‘first_table’ by executing echo "<p class='ctg_fab'>" .$row['fabricante']. " : " .$row['titulo']. " : <a href='" .$row['url']. "'>descarga</a> : tipo - " .$row['filetype']. "</p>";

user click in second header of accordion and show the content for sql table named ‘second_table’ by executing echo "<p class='ctg_fab'>" .$row['fabricante']. " : " .$row['titulo']. " : <a href='" .$row['url']. "'>descarga</a> : tipo - " .$row['filetype']. "</p>";

Answer 1

$('#accordion.h3') selects an element with id="accordion" class="h3".

Change it to $('#accordion > h3') which selects an <h3> element that has a parent element with id="accordion".