/*

Avoid Form Double Click

require jQuery 1.3.2

Created by Takayoshi Itou.

 */
$.fn.avoidDoubleClick = function() {
    var submit_enable = true;
    $(this).submit(function() {
        var submit = submit_enable;
        submit_enable = false;
        $(':submit', this).attr('disabled', 'disabled');
        return submit;
    });
};