/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* for tbl_relation.php
*
*/
function show_hide_clauses($thisDropdown)
{
// here, one span contains the label and the clause dropdown
// and we have one span for ON DELETE and one for ON UPDATE
//
if ($thisDropdown.val() != '') {
$thisDropdown.parent().nextAll('span').show();
} else {
$thisDropdown.parent().nextAll('span').hide();
}
}

/**
* Unbind all event handlers before tearing down a page
*/
AJAX.registerTeardown('tbl_relation.js', function() {
$('select.referenced_column_dropdown').unbind('change');
});

AJAX.registerOnload('tbl_relation.js', function() {
// initial display
$('select.referenced_column_dropdown').each(function(index, one_dropdown) {
show_hide_clauses($(one_dropdown));
});
// change
$('select.referenced_column_dropdown').change(function() {
show_hide_clauses($(this));
});
});