function browserSniffer(netscape4URL,explorer4URL,webtvURL,aolURL,operaURL,version3URL,w3cURL) {
 	var agt=navigator.userAgent.toLowerCase();
  	var agt=navigator.userAgent.toLowerCase();
    var is_major = parseInt(navigator.appVersion);
    var is_minor = parseFloat(navigator.appVersion);
    var is_nav  = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
                && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
                && (agt.indexOf('webtv')==-1));
    var is_nav2 = (is_nav && (is_major == 2));
    var is_nav3 = (is_nav && (is_major == 3));
    var is_nav4 = (is_nav && (is_major == 4));
    var is_nav4up = (is_nav && (is_major >= 4));
    var is_navonly      = (is_nav && ((agt.indexOf(";nav") != -1) ||
                          (agt.indexOf("; nav") != -1)) );
    var is_nav5 = (is_nav && (is_major == 5));
    var is_nav5up = (is_nav && (is_major >= 5));
    var is_ie   = (agt.indexOf("msie") != -1);
    var is_ie3  = (is_ie && (is_major < 4));
    var is_ie4  = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.0")==-1) );
    var is_ie4up  = (is_ie  && (is_major >= 4));
    var is_ie5  = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.0")!=-1) );
    var is_ie5up  = (is_ie  && !is_ie3 && !is_ie4);
    var is_aol   = (agt.indexOf("aol") != -1);
    var is_aol3  = (is_aol && is_ie3);
    var is_aol4  = (is_aol && is_ie4);
    var is_opera = (agt.indexOf("opera") != -1);
    var is_webtv = (agt.indexOf("webtv") != -1);
	  
  	if (is_nav4up) {
  	location.href = netscape4URL; // netscape 4+ but not NS5
    }else if (is_ie4up) { //IE4 & IE5 but returns IE4
  	location.href = explorer4URL;
     }else if (is_webtv) { // Web TV
   	location.href = webtvURL;
	}else if (is_aol || is_aol3 || is_aol4) { //AOL
   	location.href = aolURL;
	 }else if (is_opera) { // Opera
   	location.href = operaURL;
     }else if (is_ie3||is_nav3) { // 3.0 version browsers
   	location.href = version3URL;
    }else if (is_nav5up) { // Netscape 5
   location.href = w3cURL;
    }
}