function Br_Check() {
   this.agent = navigator.userAgent.toLowerCase() ;
   this.opera = ( ( this.agent.indexOf('opera') != -1 ) || window.opera ) ? 1 : 0 ;
   this.ie = ( ( this.agent.indexOf('msie') != -1 ) && !this.opera ) ? 1 : 0 ;
   this.net = ( ( ( this.agent.indexOf('netscape') != -1 ) || ( this.agent.indexOf('mozilla') != -1 ) ) && !this.opera ) ? 1 : 0 ;
   if(this.opera == 1) {
      document.write("<SCRIPT TYPE='text/javascript' SRC='/js/menu_op.js'></SCRIPT>");
      document.write("<LINK REL='stylesheet' HREF='/css/mirc_jo.css' TYPE='text/css'>");
   } else {
      document.write("<SCRIPT TYPE='text/javascript' SRC='/js/menu.js'></SCRIPT>");
      if (this.ie == 1) {
         document.write("<LINK REL='stylesheet' HREF='/css/mirc_je.css' TYPE='text/css'>");
      } else {
         document.write("<LINK REL='stylesheet' HREF='/css/mirc_jn.css' TYPE='text/css'>");
      }
   }
}

function Br_Check2() {
   this.agent = navigator.userAgent.toLowerCase() ;
   this.opera = ( ( this.agent.indexOf('opera') != -1 ) || window.opera ) ? 1 : 0 ;
   this.ie = ( ( this.agent.indexOf('msie') != -1 ) && !this.opera ) ? 1 : 0 ;
   this.net = ( ( ( this.agent.indexOf('netscape') != -1 ) || ( this.agent.indexOf('mozilla') != -1 ) ) && !this.opera ) ? 1 : 0 ;
   if(this.opera == 1) {
      document.write("<SCRIPT TYPE='text/javascript' SRC='/js/menu2_op.js'></SCRIPT>");
      document.write("<LINK REL='stylesheet' HREF='/css/mirc_jo.css' TYPE='text/css'>");
   } else {
      document.write("<SCRIPT TYPE='text/javascript' SRC='/js/menu2.js'></SCRIPT>");
      if (this.ie == 1) {
         document.write("<LINK REL='stylesheet' HREF='/css/mirc_je.css' TYPE='text/css'>");
      } else {
         document.write("<LINK REL='stylesheet' HREF='/css/mirc_jn.css' TYPE='text/css'>");
      }
   }
}

function Br_Check3() {
   this.agent = navigator.userAgent.toLowerCase() ;
   this.opera = ( ( this.agent.indexOf('opera') != -1 ) || window.opera ) ? 1 : 0 ;
   this.ie = ( ( this.agent.indexOf('msie') != -1 ) && !this.opera ) ? 1 : 0 ;
   this.net = ( ( ( this.agent.indexOf('netscape') != -1 ) || ( this.agent.indexOf('mozilla') != -1 ) ) && !this.opera ) ? 1 : 0 ;
   if(this.opera == 1) {
      document.write("<SCRIPT TYPE='text/javascript' SRC='/js/menu3_op.js'></SCRIPT>");
      document.write("<LINK REL='stylesheet' HREF='/css/mirc_jo.css' TYPE='text/css'>");
   } else {
      document.write("<SCRIPT TYPE='text/javascript' SRC='/js/menu3.js'></SCRIPT>");
      if (this.ie == 1) {
         document.write("<LINK REL='stylesheet' HREF='/css/mirc_je.css' TYPE='text/css'>");
      } else {
         document.write("<LINK REL='stylesheet' HREF='/css/mirc_jn.css' TYPE='text/css'>");
      }
   }
}