// JavaScript to interpolate random images into a page.
    var ic = 6;     // Number of alternative images
    var pic1 = new Array(ic);  // Array to hold filenames

//    var pic2 = new Array(ic);  // Array to hold filenames
        
pic1[0] = "header_01.jpg";
pic1[1] = "header_02.jpg";
pic1[2] = "header_03.jpg";
pic1[3] = "header_04.jpg";
pic1[4] = "header_05.jpg";
pic1[5] = "header_06.jpg";

//pic2[0] = "headergraphic01.jpg";

function pickRandom(range) {
if (Math.random)
return Math.round(Math.random() * (range-1));
else {
var now = new Date();
return (now.getTime() / 1000) % range;
}
}
// Write out an IMG tag, using a randomly-chosen image name.
var choice1 = pickRandom(ic);

document.write('<style type="text/css"> #firstlevel #header {background: url(/docs/IO/5008/'+ pic1[choice1] +') no-repeat top;} </style>');

function addCh(str) {
document.getElementById('comment').value+=str;
//  document.form.comment.focus();
}