// スタイルシートの振り分け

if( navigator.appVersion.indexOf("Mac")>1){

 if( navigator.userAgent.indexOf("Opera")!=-1){

   document.write("<link href='../css/a_mo.css' rel='stylesheet' type='text/css' media='screen'>"); // Operaの場合  

 }else if( navigator.appName.charAt(0)=="M"){

  document.write("<link href='../css/a_mm.css' rel='stylesheet' type='text/css' media='screen'>"); // IEの場合

 }else{

 		if( navigator.appVersion.charAt(0) >= 5){

		document.write("<link href='../css/a_mn.css' rel='stylesheet' type='text/css' media='screen'>");// Netscape5.0以上

		}else{ 

		document.write("<link href='../css/a_mn_4.css' rel='stylesheet' type='text/css' media='screen'>");// Netscape5.0以下

		}

 }

} else {

 if( navigator.userAgent.indexOf("Opera")!=-1){

   document.write("<link href='../css/a_wo.css' rel='stylesheet' type='text/css' media='screen'>"); // Operaの場合 

 }else if( navigator.appName.charAt(0)=="N"){

 		if( navigator.appVersion.charAt(0) >= 5){

		document.write("<link href='../css/a_wn_5.css' rel='stylesheet' type='text/css' media='screen'>");// Netscape5.0以上

		}else{ 

		document.write("<link href='../css/a_wn_4.css' rel='stylesheet' type='text/css' media='screen'>");// Netscape5.0以下

		}

 }else{

  document.write("<link href='../css/a_wm.css' rel='stylesheet' type='text/css' media='screen'>"); // IEとその他の場合

 }

}