/**
	JavaScript functions to output e-mail addresses in an obscure way to avoid spam.
**/

var tld_ 	= new Array()
tld_[0] 	 = "com";
tld_[1] 	 = "org";
tld_[2] 	 = "net";
tld_[3] 	 = "ws";
tld_[4]  	 = "info";
tld_[5]  	 = "ca";
tld_[10]	 = "co.uk";
tld_[11]	 = "org.uk";
tld_[12] 	 = "gov.uk";
tld_[13] 	 = "ac.uk";
var topDom_ = 13;
var m_      = "mailto:";
var a_      = "@";
var d_      = ".";

function mail_address(name, dom, tl) {
	document.write('<a href="'+m_+e(name,dom,tl)+'">'+e(name,dom,tl)+'</a>');
}


function mail_name(name, dom, tl, display) {
	document.write('<a href="'+m_+e(name,dom,tl)+'">'+display+'</a>');
}

function mail_open(name, dom, tl) {
	document.write('<a href="'+m_+e(name,dom,tl)+'">');
}
function mail_close(){
	document.write('</a>');
}

function e(name, dom, tl) {
	var s = name+a_;
	if (tl!=-2) {
		s+= dom;
		if (tl>=0)
			s+= d_+tld_[tl];
	} else {
		s+= swapper(dom);
	}
	return s;
}

function swapper(d) {
	var s = "";
	for (var i=0; i<d.length; i+=2) {
		if (i+1==d.length)
			s+= d.charAt(i)
		else
			s+= d.charAt(i+1)+d.charAt(i);
	}
	return s.replace(/\?/g,'.');
}