$(document).ready(function() {
    if($('#notification span').html() != ''){
        $('#notification').slideDown()
        .delay(5000)
        .slideUp();
    }
    $('#search-field').autocomplete({ 
        serviceUrl:baseURL+'include/autocomplete.php',
        minChars:3
    });
    
    $('#search').submit(function(e){
        var legal = /^[0-9a-zA-Z ]+$/;
        var input = $('#search-field').val();
        if(input.length >= 3 && input.match(legal)){
            return true;
        }else{
            $('#notification span').html('Your search need 3 or more characters, or you have illegal characters.');
            $('#notification').slideDown()
            .delay(5000)
            .slideUp();
            e.preventDefault();
        }
        
    });
});