if (navigator.appVersion.indexOf("Mac") != -1 ) {
    CURL = 'mac.css';
}
else if (navigator.appName.indexOf("Microsoft") != -1 ) {
    CURL = 'ie.css';
}
else if (navigator.appName.indexOf("Netscape") != -1 ) {
    CURL = 'ns.css';
}
else {
    CURL = 'main.css';
}

document.write('<link rel=stylesheet href="css/' + CURL + '" type=text/css>');

var pics=new Array("phototop01","phototop02","phototop03","phototop04");
function random_grab() {
    var x1=Math.random();
    x2=Math.round((x1*(pics.length-1)));
    return x2;
}
function img_gen() {
    pic_num=random_grab()
    document.write('<img src="images/'+pics[x2]+'.jpg" width="225" height="150" border=0 name="pic">');
}

function jumpToURL(urlValue) {
    if (urlValue != " ") window.location.href = urlValue;
}