function show_tool(id) {
    document.getElementById(id).style.display = 'block';
}

function hide_tool(id) {
    document.getElementById(id).style.display = 'none';
}

//not used
function question(id, message) {
    elem = document.getElementById(id);
    if (elem != null) {
        result = confirm(message);
        if (result) {
            __doPostBack(id, '');
        }
    }
}

//discountPriceX
//discountPercentX
function recalculatePriceValue(element, controlId, price) {
    var discountPriceControl = document.getElementById(controlId);
    
    var discountPercent = parseFloat(element.value);
    var standartPrice = parseFloat(price.replace(',', '.'));
    
    var newPrice = price;
    if (discountPercent != 0)
        newPrice = standartPrice * (1- discountPercent / 100);


    var control = document.getElementsByName('txtDescription');
    control.disabled = false;
    var s = newPrice.toFixed(2);
    discountPriceControl.value = s;
}

function recalculatePercentValue(element, controlId, price) {
    var discountPrice = parseFloat(element.value);
    var priceString = price.replace(',', '.');
    var standartPrice = parseFloat(priceString);

    var newPercent = 100 - discountPrice / standartPrice * 100;

    var discountPercentControl = document.getElementById(controlId);
    var s = newPercent.toFixed(2);
    discountPercentControl.value = s;
}