// Documento JavaScript
var browserName = navigator.appName; 
var browserVer = parseInt(navigator.appVersion); 
<!--alert(navigator.appVersion.indexOf('MSIE 7.'));-->
if ( (browserName == "Netscape" && browserVer >= 3) || (browserName == "Microsoft Internet Explorer" && browserVer <= 4) ) 
{ 
if ( (browserName == "Netscape" && browserVer < 4) || (browserName == "Microsoft Internet Explorer" && (navigator.appVersion.indexOf('MSIE 7.'))==-1) ) 
{ 
document.writeln("<LINK REL='STYLESHEET' TYPE='TEXT/CSS' HREF='../style/style_int2_e6.css'>") 
} 
else 
{ 
document.writeln("<LINK REL='STYLESHEET' TYPE='TEXT/CSS' HREF='../style/style_int2.css'>") 
} 
}