var agent="";
var childNumber="";
var User=window.navigator.userAgent;

if(User.indexOf("Netscape")>=0 || User.indexOf("Firefox")>=0){
  agent="nn";
  childNumber=2;
}
else if(User.indexOf("Opera 7")>=0){
  agent="o";
}
else if(User.indexOf("MSIE")>=0){
  agent="ie";
  childNumber=2;
  document.write('<LINK rel="stylesheet" href="rikom_ie1.css">');
}