function browsers (a){
 var browser_name=navigator.appName;
 var browser_version=navigator.appVersion;
 var version=parseFloat(browser_version);
 var browser_status=new Boolean (true);
 var browser_status_text="<tr><td>We have detected that you are using an older version of the web browser.";
 var browser_status_advisory="<tr><td>The site was optimized for Internet Explorer 7, Firefox 3, Opera 9.64, Chrome 1, SeaMonkey 1.1.16, Safari 4 and above.<tr><td>For better viewing experience, please try download the latest version of <a href=\"http://www.microsoft.com/windows/downloads/ie/getitnow.mspx\">Internet Explorer</a>, <a href=\"http://www.mozilla.com/en-US/firefox/firefox.html\">Firefox</a>, <a href=\"http://www.opera.com/download/\">Opera</a>, <a href=\"http://www.google.com/chrome\">Chrome</a>, <a href=\"http://www.seamonkey-project.org/releases/\">SeaMonkey</a> or <a href=\"http://www.apple.com/safari/download/\">Safari</a>";
 var browser_identity=new Boolean (true);;
 var browser_identity_text = "<tr><td>We are not able to detect the type of browser that you are using.";
 var warning_message="";
 var normal_css='style';
 var old_css='old_style';
 var msg="";
 
 switch(browser_name)
 {
 case 'Microsoft Internet Explorer':
   if (/MSIE (\d+\.\d+);/.test(navigator.userAgent)){ 
     var ieversion=new Number(RegExp.$1) // capture x.x portion and store as a number
     if (ieversion<7){
       browser_status=false;
     }
	}
   break;
 case 'Netscape':
  if (version<5){
   browser_status=false;  
  }
  break;
 case 'Opera':	
  if (version<9.64){
   browser_status=false;  
  }
  break;
 default:
  browser_identity=false;
 }
 
 if (a=='notify'){
    var box_frame_pt1="<table class=\"link_sidebar_sizer\"><tr><td class=\"box_trans_orange_ul\"><td class=\"box_trans_orange\"><td class=\"box_trans_orange_ur\"><tr><td class=\"box_trans_orange\"><td class=\"box_trans_orange\"><table><tr><td class=\"box_trans_white_ul\"><td class=\"box_trans_white\"><td class=\"box_trans_white_ur\"><tr><td class=\"box_trans_white\"><td class=\"box_trans_white\"><div class=\"link_sidebar_title\">Notification</div><td class=\"box_trans_white\"><tr><td class=\"box_trans_white_dl\"><td class=\"box_trans_white\"><td class=\"box_trans_white_dr\"></table><table class=\"link_sidebar\">";
	var box_frame_pt2="</table><td class=\"box_trans_orange\"><tr><td class=\"box_trans_orange_dl\"><td class=\"box_trans_orange\"><td class=\"box_trans_orange_dr\"></table>";
	
    if (browser_status==false){
       warning_message=box_frame_pt1+browser_status_text+browser_status_advisory+box_frame_pt2;
	   msg = warning_message; 
	   //msg="Note:<ul>"+browser_status_text+browser_status_advisory+"</ul>";
    }
    else if (browser_identity==false){
       warning_message=box_frame_pt1+browser_identity_text+browser_status_advisory+box_frame_pt2;
	   msg = warning_message; 
	   //msg="Note:<ul>"+browser_identity+browser_status_advisory+"</ul>";
    }
	else {
	   msg = "";
	}
    return msg;
 }
 else if (a=='style'){
    msg = "<link href=\"";
    if (browser_status==false){
       msg=msg + old_css;
    }
    else if (browser_identity==false){
       msg=msg + old_css;
    }
    else {
       msg=msg + normal_css;
    }
    msg = msg + ".css\" type=\"text/css\" rel=\"stylesheet\">";
    return msg;
 } 	 
}