function check_search_form() {
    var search_mask = $("#tmp_search_mask").val();
    search_mask = search_mask.replace(/^\s+|\s+$/g,"");
    if (search_mask.length < 3) {
        $("#search_error").removeClass("no-display");
    } else {
        $("#search_error").addClass("no-display");
        $("#search_mask").val(search_mask);
        document.getElementById("search_form").submit();
    }
}

$(document).ready(function(){
    $("#search_form_submit").click(function(){
        $(this).blur();
        check_search_form();
    });
    $("#tmp_search_mask").keyup(function(event){
        if (event.keyCode == 13) check_search_form();
    });
});