// JavaScript to interpolate random images into a page.
    var ic = 2;     // Number of alternative images
    var pic1 = new Array(ic);  // Array to hold filenames
     var pic1cap = new Array (ic); // Array to hold caption 

//    var pic2 = new Array(ic);  // Array to hold filenames
        
pic1[0] = "econ_1.jpg";
pic1cap[0] = "";

pic1[1] = "econ_2b.jpg";
pic1cap[1] = "";


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 {background: url(/docs/IO/7259/'+ pic1[choice1] +') no-repeat;  height:205px; background-position:center;background-position:top;} </style>');


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