function przypiszStyle(id_name,style) {
    document.getElementById(id_name).style.cssText=style;
}

//funkcja do sprawdzania powiazanych checkbox?w
function select_unselect_checkboxes(frm) {
    for (i=0; i<frm.elements.length; i++) {
        if (frm.elements[i].type == "checkbox") {
            frm.elements[i].checked = !frm.elements[i].checked;
        }
    }
}

//funkcja startowa do zaznaczania i odznaczania checkboxow
//sprawdza tablice checkboxowe zamiast jednego checkboxa
function ZaznaczOdznaczCheckboxyStart(elements_title,aktualnie_zaznaczone) {
    for (e=0; e<elements_title.length; e++) {
        for (i=0; i<window.document.frm.elements.length; i++) {
            if (window.document.frm.elements[i].title == elements_title[e]) {
                if (aktualnie_zaznaczone[e] == false) {
                    window.document.frm.elements[i].disabled = true;
                    window.document.frm.elements[i].checked = false;
                } else {
                    window.document.frm.elements[i].disabled = false;
                }
            }
        }
    }
}

function searchCategoryVerify(search_text,alert_if_text_empty,category_id,form_name) {
    if (search_text == '') {
        alert(alert_if_text_empty);
        return false;
    } else {
        if (category_id == 0) {
            form_name.action = 'products,search,search-' + search_text + '.html';
        } else {
            form_name.action = 'categories,list,' + category_id + ',search-' + search_text + '.html';
        }
        return true;
    }
}

function searchPriceVerify(price_from,price_to,alert_if_prices_zero,alert_if_prices_incorrect,search_text,form_name) {
    pr_from = parseFloat(price_from);
    pr_to = parseFloat(price_to);
    if ((pr_from == 0) && (pr_to == 0)) {
        alert(alert_if_prices_zero);
        return false;
    } else {
        if (pr_from > pr_to) {
            alert(alert_if_prices_incorrect);
            return false;
        } else {
            if (search_text == '') {
                form_name.action = 'products,search,price_from-' + pr_from + ',price_to-' + pr_to + '.html';
            } else {
                form_name.action = 'products,search,search-' + search_text + ',price_from-' + pr_from + ',price_to-' + pr_to + '.html';
            }
            return true;
        }
    }
}