<!--
window.onerror = null;
function loadstyle(path){

  var nu  = navigator.userAgent.toLowerCase()

  if(document.layers)return               
  var winie  = nu.indexOf('msie')!=-1 && nu.indexOf('win')!=-1 
  var macie  = nu.indexOf('msie')!=-1 && nu.indexOf('mac')!=-1
  var moz    = nu.indexOf('gecko')!=-1 
  var opr    = nu.indexOf('opera')!=-1  
  var s1     = nu.indexOf("safari")!=-1 

 if(!window.loadstyle.arguments[0]) path='http://www.si-ao.com/css/'

  var cssfile = path

  //CSS
  if (opr)        cssfile += 'opr.css'
  else if (winie) cssfile += 'winie.css'
  else if (macie) cssfile += 'macie.css'
  else if (s1)   cssfile += 's1.css'
  else if (moz)   cssfile += 'moz.css'
  else            cssfile += 'non.css'

  var link_src = '<LINK REL=stylesheet HREF="'+ cssfile +'" TYPE="text/css">'

  //OUTPUT
  document.write(link_src)
}


loadstyle()
//-->