// JavaScript Document
function PopupWindow(sURL, iWidth, iHeight) {
        if (iWidth == undefined) iWidth = 640;
        if (iHeight == undefined) iHeight = 480;
        if (iWidth > screen.availWidth) iWidth = screen.availWidth;
        if (iHeight > screen.availHeight) iHeight = screen.availHeight;
        var iLeft = parseInt((screen.availWidth - iWidth) / 2);
        var iTop = parseInt((screen.availHeight - iHeight) / 2);
        var popAttr = 'width=' + iWidth + ', height=' + iHeight + ', top=' + iTop + ', left=' + iLeft + ', resizable=yes, scrollbars=yes';
        var popupWindow = window.open(sURL, 'popupWindow_siteSpecific_common_productCategories_aspx', popAttr);
}