var agt=navigator.userAgent.toLowerCase();
var is_major = parseInt(navigator.appVersion);
var is_mac    = (agt.indexOf("mac")!=-1);
is_netscape = (document.layers)? true:false
var is_ie   = (agt.indexOf("msie") != -1);
var is_ie3  = (is_ie && (is_major < 4));
var is_ie4  = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.0")==-1) );
var is_ie4up  = (is_ie  && (is_major >= 4));
var is_ie5  = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.0")!=-1) );
var is_ie5up  = (is_ie  && !is_ie3 && !is_ie4);

if (is_mac && is_ie5up) 
{
   document.write("<link rel=stylesheet href=http://www.colgate.com/Colgate/Common/includes/css/small.css>")
}

else if (is_mac) 
{
   document.write("<link rel=stylesheet href=http://www.colgate.com/Colgate/Common/includes/css/big.css>")
}

else 
{
   if (is_netscape) 
   {
	  document.write("<link rel=stylesheet href=http://www.colgate.com/Colgate/Common/includes/css/small.css>")
   } 
   else 
   {
	  document.write("<link rel=stylesheet href=http://www.colgate.com/Colgate/Common/includes/css/small.css>")
   }
}