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) && (agt.indexOf('hotjava')==-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_nav6 = (is_nav && (is_major == 5));
var is_nav6up = (is_nav && (is_major >= 5));
var is_gecko = (agt.indexOf('gecko') != -1);
var is_ie     = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
var is_ie3    = (is_ie && (is_major < 4));
var is_ie4    = (is_ie && (is_major == 4) && (agt.indexOf("msie 4") != -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_ie5_5  = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.5") != -1));
var is_ie5up  = (is_ie && !is_ie3 && !is_ie4);
var is_ie5_5up =(is_ie && !is_ie3 && !is_ie4 && !is_ie5);
var is_ie6    = (is_ie && (is_major == 4) && (agt.indexOf("msie 6.") != -1) );
var is_ie6up  = (is_ie && !is_ie3 && !is_ie4 && !is_ie5 && !is_ie5_5);
var is_aol   = (agt.indexOf("aol") != -1);
var is_aol3  = (is_aol && is_ie3);
var is_aol4  = (is_aol && is_ie4);
var is_aol5  = (agt.indexOf("aol 5") != -1);
var is_aol6  = (agt.indexOf("aol 6") != -1);
var is_opera = (agt.indexOf("opera") != -1);
var is_opera2 = (agt.indexOf("opera 2") != -1 || agt.indexOf("opera/2") != -1);
var is_opera3 = (agt.indexOf("opera 3") != -1 || agt.indexOf("opera/3") != -1);
var is_opera4 = (agt.indexOf("opera 4") != -1 || agt.indexOf("opera/4") != -1);
var is_opera5 = (agt.indexOf("opera 5") != -1 || agt.indexOf("opera/5") != -1);
var is_opera5up = (is_opera && !is_opera2 && !is_opera3 && !is_opera4);
var is_webtv = (agt.indexOf("webtv") != -1); 
var is_TVNavigator = ((agt.indexOf("navio") != -1) || (agt.indexOf("navio_aoltv") != -1)); 
var is_AOLTV = is_TVNavigator;
var is_hotjava = (agt.indexOf("hotjava") != -1);
var is_hotjava3 = (is_hotjava && (is_major == 3));
var is_hotjava3up = (is_hotjava && (is_major >= 3));
var is_js;
if (is_nav2 || is_ie3) is_js = 1.0;
else if (is_nav3) is_js = 1.1;
else if (is_opera5up) is_js = 1.3;
else if (is_opera) is_js = 1.1;
else if ((is_nav4 && (is_minor <= 4.05)) || is_ie4) is_js = 1.2;
else if ((is_nav4 && (is_minor > 4.05)) || is_ie5) is_js = 1.3;
else if (is_hotjava3up) is_js = 1.4;
else if (is_nav6 || is_gecko) is_js = 1.5;
else if (is_nav6up) is_js = 1.5;
else if (is_ie5up) is_js = 1.3
else is_js = 0.0;
var is_win   = ( (agt.indexOf("win") != -1) || (agt.indexOf("16bit") != -1) );
var is_win95 = ((agt.indexOf("win95") != -1) || (agt.indexOf("windows 95") != -1));
var is_win16 = ((agt.indexOf("win16") != -1) || 
		   (agt.indexOf("16bit") != -1) || (agt.indexOf("windows 3.1") != -1) || 
		   (agt.indexOf("windows 16-bit") != -1) );  
var is_win31 = ((agt.indexOf("windows 3.1") != -1) || (agt.indexOf("win16") != -1) ||
				(agt.indexOf("windows 16-bit") != -1));
var is_winme = ((agt.indexOf("win 9x 4.90") != -1));
var is_win2k = ((agt.indexOf("windows nt 5.0") != -1));
var is_win98 = ((agt.indexOf("win98") != -1) || (agt.indexOf("windows 98") != -1));
var is_winnt = ((agt.indexOf("winnt") != -1) || (agt.indexOf("windows nt") != -1));
var is_win32 = (is_win95 || is_winnt || is_win98 || 
				((is_major >= 4) && (navigator.platform == "Win32")) ||
				(agt.indexOf("win32") != -1) || (agt.indexOf("32bit") != -1));
var is_os2   = ((agt.indexOf("os/2") != -1) || 
				(navigator.appVersion.indexOf("OS/2") != -1) ||   
				(agt.indexOf("ibm-webexplorer") != -1));
var is_mac    = (agt.indexOf("mac") != -1);
if (is_mac && is_ie5up) is_js = 1.4;
var is_mac68k = (is_mac && ((agt.indexOf("68k") != -1) || 
						   (agt.indexOf("68000") != -1)));
var is_macppc = (is_mac && ((agt.indexOf("ppc") != -1) || 
							(agt.indexOf("powerpc") != -1)));
var is_sun   = (agt.indexOf("sunos") != -1);
var is_sun4  = (agt.indexOf("sunos 4") != -1);
var is_sun5  = (agt.indexOf("sunos 5") != -1);
var is_suni86= (is_sun && (agt.indexOf("i86") != -1));
var is_irix  = (agt.indexOf("irix") != -1);    // SGI
var is_irix5 = (agt.indexOf("irix 5") != -1);
var is_irix6 = ((agt.indexOf("irix 6") != -1) || (agt.indexOf("irix6") != -1));
var is_hpux  = (agt.indexOf("hp-ux") != -1);
var is_hpux9 = (is_hpux && (agt.indexOf("09.") != -1));
var is_hpux10= (is_hpux && (agt.indexOf("10.") != -1));
var is_aix   = (agt.indexOf("aix") != -1);      // IBM
var is_aix1  = (agt.indexOf("aix 1") != -1);    
var is_aix2  = (agt.indexOf("aix 2") != -1);    
var is_aix3  = (agt.indexOf("aix 3") != -1);    
var is_aix4  = (agt.indexOf("aix 4") != -1);    
var is_linux = (agt.indexOf("inux") != -1);
var is_sco   = (agt.indexOf("sco") != -1) || (agt.indexOf("unix_sv") != -1);
var is_unixware = (agt.indexOf("unix_system_v") != -1); 
var is_mpras    = (agt.indexOf("ncr") != -1); 
var is_reliant  = (agt.indexOf("reliantunix") != -1);
var is_dec   = ((agt.indexOf("dec") != -1) || (agt.indexOf("osf1") != -1) || 
	   (agt.indexOf("dec_alpha") != -1) || (agt.indexOf("alphaserver") != -1) || 
	   (agt.indexOf("ultrix") != -1) || (agt.indexOf("alphastation") != -1)); 
var is_sinix = (agt.indexOf("sinix") != -1);
var is_freebsd = (agt.indexOf("freebsd") != -1);
var is_bsd = (agt.indexOf("bsd") != -1);
var is_unix  = ((agt.indexOf("x11") != -1) || is_sun || is_irix || is_hpux || 
			 is_sco ||is_unixware || is_mpras || is_reliant || 
			 is_dec || is_sinix || is_aix || is_linux || is_bsd || is_freebsd);

var is_vms   = ((agt.indexOf("vax") != -1) || (agt.indexOf("openvms") != -1));
var is_nn = agt.indexOf('mozilla') > 0;
if(agt.indexOf('compatible') > 0) {
	is_nn = false;
}
var is_omniweb = agt.indexOf('omniweb') > 0;
var is_galeon = agt.indexOf('galeon') > 0;
var is_openbsd = agt.indexOf('openbsd') > 0;
var is_netbsd = agt.indexOf('netbsd') > 0;
if(is_ie && is_mac) {
  if(agt.indexOf("msie 5")) {
    is_major = 5;
    var actual_index = agt.indexOf("msie 5");
    var actual_major = agt.substring(actual_index + 5, actual_index + 8);
    is_minor = parseFloat(actual_major);
  }
}

// NEEDED FOR FINDING AN IMAGE'S REAL POSITION
var exclude = true;
var ie = false;
var ie4 = false;
var ie5 = false;
var op5 = false;
var op7 = false;
var konqi = false;
if(typeof document.all!="undefined"&&(agt.indexOf('msie')!=-1)){
	ie = true;
	ie4 = true;
	exclude = false;
	if(agt.indexOf('msie 4')==-1){
		ie5 = true;
		ie4 = false;
	}
	if(agt.indexOf('opera')!=-1){
		ie = false;
		ie4 = false;
		ie5 = false;
		op5 = true;
	}
}
var ns6 = false;
var mz7 = false;
if(typeof document.getElementById!="undefined"&&!ie){
	ns6 = true;
	exclude = false;
	if(agt.indexOf('netscape6')==-1){
		ns6 = false;
		mz7 = true;
	}
	if(typeof window.opera!="undefined"){
		mz7 = false;
		op5 = true;
		if((agt.indexOf("opera 7")!=-1)||(agt.indexOf("opera/7")!=-1)){
			op5 = false;
			op7 = true;
		}
	}else if(agt.indexOf('gecko')==-1){
		mz7 = false;
		exclude = true;
	}
}
if(agt.indexOf('opera 4')!=-1){
	op5 = false;
	mz7 = false;
	exclude = true;
}
var ns4 = false;
if((agt.indexOf('mozilla')!=-1)&&(parseInt(navigator.appVersion)>=4)&&!ie&&!op5&&!ns6&&!mz7){
	ns4 = true;
	exclude = false;
}
if(agt.indexOf('webtv')!=-1){
	ie = false;
	ie4 = false;
	exclude = true;
}
var win = false;
var mac = false;
var lin = false;
if(agt.indexOf('win')!=-1){
	win = true;
	mac = false;
	lin = false;
}else if(agt.indexOf('mac')!=-1){
	win = false;
	mac = true;
	lin = false;
}else{
	win = false;
	mac = false;
	lin = true;
}