var randnum = Math.round(8999*Math.random()+1000);
document.write ('<b>' + randnum + '</b>');
document.write ('<input id ="servercode" type ="hidden" name = "servercode" value = "' + randnum + '" />');
document.write (' <input id ="userconfirm" type ="text" name = "userconfirm" maxlength = "4" size = "3" />');