function popitup(url) {
    var newwindow = ''
    if (newwindow.location && !newwindow.closed) {
        newwindow.location.href = url;
        newwindow.focus();
    }
    else {
        newwindow = window.open(url, 'htmlname', 'width=600,height=480,resizable=1,toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0');
    }
}


function tidy() {
    var newwindow = ''
    if (newwindow.location && !newwindow.closed) {
        newwindow.close();
    }
}

function brochure(url) {
    var newwindow = ''
    if (newwindow.location && !newwindow.closed) {
        newwindow.location.href = url;
        newwindow.focus();
    }
    else {
        newwindow = window.open(url, 'htmlname', 'width=800,height=640,resizable=1,toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0');
    }
}