function browserImage(){

	if (is_nav6) { 
		return('<img src=images/logo_netscape.gif alt=Netscape width=147 height=100 hspace=0 vspace=0 border=0 title=Netscape>');
	} else if (is_nav6up) {
   		return('<img src=images/logo_netscape.gif alt=Netscape width=147 height=100 hspace=0 vspace=0 border=0 title=Netscape>');
	} else if (is_nav4) {
		return('<img src=images/logo_nav4.gif alt=Netscape width=147 height=100 hspace=0 vspace=0 border=0 title=Netscape>');
	} else if (is_ie4up) {
		return('<img src=images/logo_ie.gif alt=\"Internet Explorer\" width=147 height=100 hspace=0 vspace=0 border=0 title=\"Internet Explorer\">');
	} else if (is_ie5up) {
		return('<img src=images/logo_ie.gif alt=\"Internet Explorer\" width=147 height=100 hspace=0 vspace=0 border=0 title=\"Internet Explorer\">');
	} else if (is_opera) {
		return('<img src=images/logo_opera.gif alt=\"Opera\" width=147 height=100 hspace=0 vspace=0 border=0 title=\"Opera\">');
	} else if (is_aol) {
		return('<img src=images/logo_aol.gif width=147 height=100 hspace=0 vspace=0 border=0 alt=\"AOL\" title=\"AOL\">');
	} else if (is_aol3) {
		return('<img src=images/logo_aol.gif width=147 height=100 hspace=0 vspace=0 border=0 alt=\"AOL\" title=\"AOL\">');
	} else if (is_aol4) {
		return('<img src=images/logo_aol.gif width=147 height=100 hspace=0 vspace=0 border=0 alt=\"AOL\" title=\"AOL\">');
	} else if (is_aol5) {
		return('<img src=images/logo_aol.gif width=147 height=100 hspace=0 vspace=0 border=0 alt=\"AOL\" title=\"AOL\">');
	} else if (is_aol6) {
		return('<img src=images/logo_aol.gif width=147 height=100 hspace=0 vspace=0 border=0 alt=\"AOL\" title=\"AOL\">');
	} else {
		return('<img src=images/logo_unknown.gif width=147 height=100 hspace=0 vspace=0 border=0 alt=\"unknown\" title=\"unknown\">');
	}
}

function browserText() {

	if (is_nav6) {
	   	return('<center><font color=ffffff face=verdana, arial, sans serif size=1><B>[ Version '+navigator.vendorSub+' ]<\/B><\/font><\/center>');
	} else if (is_nav6up) {
	   	return('<center><font color=ffffff face=verdana, arial, sans serif size=1><B>[ Version '+navigator.vendorSub+' ]<\/B><\/font><\/center>');
	} else if (is_nav4) {
		return('<center><font color=ffffff face=verdana, arial, sans serif size=1><B>[ Version '+parseFloat(navigator.appVersion)+' ]<\/B><\/font><\/center>');
	} else if (is_ie4up) {
		return('<center><font color=ffffff face=verdana, arial, sans serif size=1><B>[ Version '+parseFloat(navigator.appVersion.substring(22,25))+' ]<\/B><\/font><\/center>');
	} else if (is_ie5up) {
		return('<center><font color=ffffff face=verdana, arial, sans serif size=1><B>[ Version '+agt.indexOf()+' ]<\/B><\/font><\/center>');
	} else if (is_opera) {
		return('<center><font color=ffffff face=verdana, arial, sans serif size=1><B>[ Version '+parseFloat(navigator.appVersion)+' ]<\/B><\/font><\/center>');
	} else if (is_aol) {
		return('<center><font color=ffffff face=verdana, arial, sans serif size=1><B>[ Version '+is_minor+' ]<\/B><\/font><\/center>');
	} else if (is_aol3) {
		return('<center><font color=ffffff face=verdana, arial, sans serif size=1><B>[ Version 3 ]<\/B><\/font><\/center>');
	} else if (is_aol4) {
		return('<center><font color=ffffff face=verdana, arial, sans serif size=1><B>[ Version 4 ]<\/B><\/font><\/center>');
	} else if (is_aol5) {
		return('<center><font color=ffffff face=verdana, arial, sans serif size=1><B>[ Version 5 ]<\/B><\/font><\/center>');
	} else if (is_aol6) {
		return('<center><font color=ffffff face=verdana, arial, sans serif size=1><B>[ Version 6 ]<\/B><\/font><\/center>');
	} else {
		return('Unknown');
	}
}

function browserSupported(){

	var nav_required=4.78;
	var nav_bad1=6.0;
	var nav_bad2=6.01;
	var nav_bad3=6.1;
	var nav_bad4=7.0;

	if (is_nav6) {
		if (navigator.vendorSub == nav_bad1 || navigator.vendorSub == nav_bad2 || navigator.vendorSub == nav_bad3 || navigator.vendorSub == nav_bad4) {
		   	return('<img src=images/blurb_ns_bad.gif alt=\"Not Supported\" title=\"This browser is NOT supported\" width=157 height=75 hspace=0 vspace=0 border=0>');
		} else {
		   	return('<img src=images/blurb_supported.gif alt=\"Supported\" title=\"This browser IS supported\" width=157 height=75 hspace=0 vspace=0 border=0>');
		}
	} else if (is_nav6up) {
	   	return('<img src=images/blurb_supported.gif alt=\"Supported\" title=\"This browser IS supported\" width=157 height=75 hspace=0 vspace=0 border=0>');
	} else if (is_nav4) { 
		if (parseFloat(navigator.appVersion) <= nav_required)	{
			return('<img src=images/blurb_not_supported.gif alt=\"Not Supported\" title=\"This browser is NOT supported\" width=157 height=75 hspace=0 vspace=0 border=0>');
		} else {
			return('<img src=images/blurb_supported.gif alt=\"Supported\" title=\"This browser IS supported\" width=157 height=75 hspace=0 vspace=0 border=0>');
		}
	} else if (is_nav4up) {
		if (parseFloat(navigator.appVersion) <= nav_required)	{
			return('<img src=images/blurb_not_supported.gif alt=\"Not Supported\" title=\"This browser is NOT supported\" width=157 height=75 hspace=0 vspace=0 border=0>');
		} else {
			return('<img src=images/blurb_supported.gif alt=\"Supported\" title=\"This browser IS supported\" width=157 height=75 hspace=0 vspace=0 border=0>');
		}
	} else if (is_ie5up) {
		return('<img src=images/blurb_supported.gif alt=\"Supported\" title=\"This browser IS supported\" width=157 height=75 hspace=0 vspace=0 border=0>');
	} else if (is_opera) {
		return('<img src=images/blurb_opera.gif alt=\"Not Supported\" title=\"Opera is NOT supported\" width=157 height=75 hspace=0 vspace=0 border=0>');
	} else if (is_aol) {
		return('<img src=images/blurb_aol.gif alt=\"Not Supported\" title=\"Opera is NOT supported\" width=157 height=75 hspace=0 vspace=0 border=0>');
	} else if (is_aol3) {
		return('<img src=images/blurb_aol.gif alt=\"Not Supported\" title=\"Opera is NOT supported\" width=157 height=75 hspace=0 vspace=0 border=0>');
	} else if (is_aol4) {
		return('<img src=images/blurb_aol.gif alt=\"Not Supported\" title=\"Opera is NOT supported\" width=157 height=75 hspace=0 vspace=0 border=0>');
	} else if (is_aol5) {
		return('<img src=images/blurb_aol.gif alt=\"Not Supported\" title=\"Opera is NOT supported\" width=157 height=75 hspace=0 vspace=0 border=0>');
	} else if (is_aol6) {
		return('<img src=images/blurb_aol.gif alt=\"Not Supported\" title=\"Opera is NOT supported\" width=157 height=75 hspace=0 vspace=0 border=0>');
	} else {
		return('<img src=images/blurb_not_supported.gif alt=\"Not Supported\" title=\"This browser is NOT supported\" width=157 height=75 hspace=0 vspace=0 border=0>');
	}
}

function isMac(){
	if ((navigator.platform.indexOf('Mac') > -1)  || (navigator.platform.indexOf('PPC') > -1 )) {
		return true;
	} else {
		return false;
	}
}