/* ****************************************************************** */
function openwindow(t_url, sbars, width, height, bnav) {
    var wx, wy;
    if (bnav == 1) {
    bnav = "menubar=yes,toolbar=yes,";
    } else {
    bnav = "";
    }
    if (sbars == 1) {
        scrollb = "scrollbars=yes,";
    } else {
        scrollb = "";
    }
    if (screen.availWidth >= width) {
        wx = (screen.availWidth - width) / 2;
    } else {
        wx = 0;
    }
    if (screen.availHeight >= height) {
        wy = (screen.availHeight - height) / 2;
    } else {
        wy = 0;
    }
    return window.open(t_url, '', scrollb + bnav + 'width=' + width + ',height=' + height + ',left=' + wx + ',top=' + wy + ', resizable=yes');
}
/* ****************************************************************** */
function d_support() {
    return (document.layers ||
     document.all ||
     document.getElementById);
}
function d_style(id) {
    if (document.layers) {
 return d_obj(id);
    } else if (document.all || document.getElementById) {
 return d_obj(id).style;
    } 
}
function d_obj(id) {
    if (document.layers) {
 return document.layers[id];
    } else if (document.all) {
 return document.all[id];
    } else if (document.getElementById) {
 return document.getElementById(id);
    } else return null;
}