if ((navigator.appVersion.indexOf("Mac") != -1)) 
 if ((navigator.userAgent.indexOf("Safari") != -1)) 
  document.write("<LINK REL=stylesheet HREF=stylesafari.css TYPE=text/css>"); 
 else 
   document.write("<LINK REL=stylesheet HREF=stylemac.css TYPE=text/css>"); 
else 
  document.write("<LINK REL=stylesheet HREF=stylewin.css TYPE=text/css>"); 
newWin1 = null;
function popup(Name,title,X,Y){
if(newWin1 != null && !newWin1.closed) {
window.newWin1.close();
}
newWin1=window.open(Name , title,'width='+X+',height='+Y+',menubar=no,toolbar=no,location=no,directories=no,status=no,scrollbars=yes,resizaeable=no,left=200,top=10');
}