var IE=0;
var Opera=0;
var Netscape=0;
var AppVersion=window.navigator.appVersion;
var pos=0;
var fitPageToBrowser=0;

if(window.navigator.appName=='Netscape')	{

 Netscape=1;

}

if(window.navigator.appName=='Microsoft Internet Explorer')	{

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

  Opera=1;  

 }

 else	{

  pos=AppVersion.indexOf('MSIE ');

  AppVersion=parseFloat(AppVersion.substring(pos+5, pos+8));

  if(AppVersion>=5)	{

   IE=1; 

  }

 }

}