<!-- 
// convert all characters to lowercase to simplify testing 
var agt=navigator.userAgent.toLowerCase(); 

// *** BROWSER VERSION *** 
// Note: On IE5, these return 4, so use is_ie5up to detect IE5. 
var is_major = parseInt(navigator.appVersion); 
var is_minor = parseFloat(navigator.appVersion); 

// Note: Opera and WebTV spoof Navigator.  We do strict client detection. 
// If you want to allow spoofing, take out the tests for opera and webtv. 
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); 

// KNOWN BUG: On AOL4, returns false if IE3 is embedded browser 
// or if this is the first browser window opened.  Thus the 
// variables is_aol, is_aol3, and is_aol4 aren't 100% reliable. 
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_opera && !is_webtv && !is_aol && !is_ie && !is_nav)
	is_ie = 1;
// -->