$(document).ready(function(){
    $('#general-search-form').submit(function(){
        var termo = $('#general-search-form input:first').val();
        $(this).attr('action', $(this).attr('action') + termo);
    });
    
    $('#general-search-form2').submit(function(){
        var termo = $('#general-search-form2 input:first').val();
        $(this).attr('action', $(this).attr('action') + termo);
    });

    $('#general-search-form3').submit(function(){
        var termo = $('#general-search-form3 input:first').val();
        $(this).attr('action', $(this).attr('action') + termo);
    });
})