function hideobject(num) {
  if (document.getElementById(num)) document.getElementById(num).className = 'pop';
}

function showobject(num) {
  if (document.getElementById(num))document.getElementById(num).className = 'go';
}


function window_open(url,sizex,sizey,r,scrollb,titlepage) {
var r,titlepage,scrollb;
//r=Math.round(Math.random() * 10000);
window.open (url, r, 'Toolbar=0, Titlebar=0, Location=0, Directories=0, Status=0, Menubar=0, Scrollbars='+scrollb+', Resizable=0, Copyhistory=1, width='+sizex+',height='+sizey);
}