// JavaScript Document
/*alert(navigator.appVersion);*/
var browser     = '';
var version     = '';
var entrance    = '';
var cond        = '';
// BROWSER?
if (browser == ''){
if (navigator.appVersion.indexOf('MSIE 7.0') != -1)
browser = 'MSIE 7.0'
else if (navigator.appName.indexOf('Microsoft') != -1)
browser = 'IE'
else if (navigator.appName.indexOf('Netscape') != -1)
browser = 'Netscape'

else browser = 'Mozilla';
}
if (version == ''){
version= navigator.appVersion;
paren = version.indexOf('(');
whole_version = navigator.appVersion.substring(0,paren-1);
version         = parseInt(whole_version);
}
if (browser == 'IE' && version >= 4) document.write('<'+'link rel="stylesheet" href="css/ie_base.css" />');
if (browser == 'MSIE 7.0') document.write('<'+'link rel="stylesheet" href="css/ie7_base.css" />');
if (browser == 'Netscape' && version >= 2.02) document.write('<'+'link rel="stylesheet" href="css/ff_base.css" />');