Name = navigator.appName;
Version = parseInt(navigator.appVersion);

if (Name == "Netscape")
	br="netscape";
 else
	br="IE"	; 

if (Name == "Netscape" && Version >= 3)
	Browser = "n3";
else if ( Name == "Microsoft Internet Explorer" && Version >= 4 )
	Browser = "n3";
else
	Browser = "n2";
if (Browser == "n3") 
{
    home1 = new Image();
    home1.src  = "../buttons/home1.gif";
    home2 = new Image();
    home2.src = "../buttons/home2.gif";

    prescription1 = new Image();
    prescription1.src  = "../buttons/prescription2.gif";
    prescription2 = new Image();
    prescription2.src = "../buttons/prescription2.gif";

    non_prescription1 = new Image();
    non_prescription1.src  = "../buttons/non_prescription1.gif";
    non_prescription2 = new Image();
    non_prescription2.src = "../buttons/non_prescription2.gif";

    library1 = new Image();
    library1.src  = "../buttons/library1.gif";
    library2 = new Image();
    library2.src = "../buttons/library2.gif";
     
    profile1 = new Image();
    profile1.src  = "../buttons/profile1.gif";
    profile2 = new Image();
    profile2.src = "../buttons/profile2.gif";
     
    new_user1 = new Image();
    new_user1.src  = "../buttons/new_user1.gif";
    new_user2 = new Image();
    new_user2.src = "../buttons/new_user2.gif";
     
    cart1 = new Image();
    cart1.src  = "../buttons/cart1.gif";
    cart2 = new Image();
    cart2.src = "../buttons/cart2.gif";
     
    about1 = new Image();
    about1.src  = "../buttons/about1.gif";
    about2 = new Image();
    about2.src = "../buttons/about2.gif";
     
    faq1 = new Image();
    faq1.src  = "../buttons/faq1.gif";
    faq2 = new Image();
    faq2.src = "../buttons/faq2.gif";
     
    ask1 = new Image();
    ask1.src  = "../buttons/ask1.gif";
    ask2 = new Image();
    ask2.src = "../buttons/ask2.gif";
     
    terms1 = new Image();
    terms1.src  = "../buttons/terms1.gif";
    terms2 = new Image();
    terms2.src = "../buttons/terms2.gif";

	 privacy1 = new Image();
     privacy1.src  = "../buttons/privacy1.gif";
     privacy2 = new Image();
     privacy2.src = "../buttons/privacy2.gif";
}

function change(Name,Image,No) 
{
     if (Browser == "n3") document [Name].src = eval(Image + No + ".src");
}  

function MM_openBrWindow(theURL,winName,features) 
{ //v2.0
	window.open(theURL,winName,features);
}

function isEmpty(str)
{
	var ie = document.all;
	if(ie)
	{
		if(str=="")
			return true;
		var re = /(\S+)/gi;
		var t = re.test(str); 
		return !t;
	}
	else
	{
		if(str=="")	
			return true;
		return false;
	}
}