function showPopupWindow(url, win_name, dim_w, dim_h, pos_x, pos_y, options)
{
    var optiuni='';
    var wnd;

    // Ex. showPopupWindow('test.html', 'nb', '200', '100', '', '', 'resizable, status, scrollbars=0, location, toolbar');

    if (url && url!='' && url!='undefined') {
        if (win_name=='' || win_name=='undefined') {
            win_name = '_blank';
        }
        if (dim_w) {
            optiuni += 'width='+ dim_w +',';
        }
        if (dim_h) {
            optiuni += 'height='+dim_h+',';
        }
        if (options) {
            optiuni += options;
        }
        wnd = window.open(url, win_name, optiuni);
    } else {
        // if url is empty
        return false;
    }
    if (pos_x || pos_y) {
        if (pos_x=='undefined') {
            pos_x='';
        }
        if (pos_y=='undefined')    {
            pos_y='';
        }
        wnd.moveTo(pos_x, pos_y);
    }
    wnd.focus();
}