/*************** windows *********/
function showProductWindow(productId) {
    window.radopen("ShowProductItem.aspx?ID=" + productId, "productWindow");

    var oManager = GetRadWindowManager();
    var oWnd = oManager.GetWindowByName("productWindow");

    oWnd.Center();
}

function EnterHandler(btnId) {
    if (event.keyCode == 13) {
        event.returnValue = false;
        event.cancel = true;
        var btn = document.getElementById(btnId);
        if (btn != null)
            btn.click();
    }
}

function closeProductWindow() {
    var oManager = GetRadWindowManager();
    var oWnd = oManager.GetWindowByName("productWindow");
    oWnd.Close();
}

function checkInterface() {
/*    var firstColumnDiv = document.getElementById("first-column");
    var contentDiv = document.getElementById("content");
    var thirdColumnDiv = document.getElementById("third-column");

    if (firstColumnDiv.offsetHeight < contentDiv.offsetHeight)
        firstColumnDiv.style.height = contentDiv.offsetHeight + 'px';
    thirdColumnDiv.style.height = contentDiv.offsetHeight + 'px';*/

    var firstColumnDiv = document.getElementById("first-column");
    var contentDiv = document.getElementById("content");
    var thirdColumnDiv = document.getElementById("third-column");
    var menuFooter = document.getElementById("footer");
    
    if (firstColumnDiv.offsetHeight < contentDiv.offsetHeight)
        firstColumnDiv.style.height = contentDiv.offsetHeight + 'px';
    thirdColumnDiv.style.height = menuFooter.offsetTop + menuFooter.offsetHeight - 6 + 'px';    
}

function changeFontSize(fontIncrease) {
    var currentElement, currentFontSize, newFontSize;

    if (document.getElementsByTagName) {
        tags = new Array('div', 'p', 'a');
        var tagsLength = tags.length;
        for (j = 0; j < tagsLength; j++) {
            var tagElements = document.getElementById('wrapper').getElementsByTagName(tags[j]);

            var tagLength = tagElements.length;
            for (i = 0; i < tagLength; i++) {
                currentElement = tagElements[i];
                currentElement.style.fontSize = fontIncrease;
            }
        }
    }
}