/**
 * @var sql_box_locked lock for the sqlbox textarea in the querybox/querywindow
 */
var search_box_locked = false

/**
 * @var array holds elements which content should only selected once
 */
var only_once_elements = new Array();

/**
 * selects the content of a given object, f.e. a textarea
 *
 * @param   object  element     element of which the content will be selected
 * @param   var     lock        variable which holds the lock for this element
 *                              or true, if no lock exists
 * @param   boolean only_once   if true this is only done once
 *                              f.e. only on first focus
 */
function selectContent( element, lock, only_once ) {
    if ( only_once && only_once_elements[element.name] ) {
        return;
    }

    only_once_elements[element.name] = true;

    if ( lock  ) {
        return;
    }

    element.select();
}