function checkForm(charset) {
		if(charset.match(/euc/i)){
			document.write('<script language="JavaScript" type="text/javascript" src="http://occi.jp/yeg/js/form_w_euc.js"></script>');
		}else if(charset.match(/utf/i)){
	    	document.write('<script language="JavaScript" type="text/javascript" src="http://occi.jp/yeg/js/form_w_utf8.js"></script>');
		}else{
			document.write('<script language="JavaScript" type="text/javascript" src="http://occi.jp/yeg/js/form_w_sjis.js"></script>');
		}
}
function getChar(){
  if(document.all){
  	  var char = document.charset;
  }else{
  	  var char = document.characterSet;
  }
  return char;
}

document.write('<script type="text/javascript">checkForm(getChar());</script>');