/*
**  EmailLink script by Jason Johnston (jj[at]lojjic{dot}net)
**  Created August 2003.  Use freely, but give me credit.
**
**  This script will allow you to obfuscate email addresses
**  in web pages so spam harvesters will not see them.  The
**  email address is entered in plain text with abnormal
**  characters, and the script decodes and creates a 
**  mailto: link from it. See the documentation at
**  http://lojjic.net/script-library/EmailLink-doc.html 
**  for details.
*/

function EmailLink(elt) {
	this.element = elt;
	this.create();
}
EmailLink.prototype = {
	create : function() {
		var elt = this.element;
		if(elt.firstChild.nodeType != 3) return; //first node must be text
		var addr = elt.firstChild.nodeValue;
		addr = addr.replace(/[ \[\{\(\|\/\\]at[ \]\}\)\|\/\\]/i, "@");
		addr = addr.replace(/[ \[\{\(\|\/\\](dot|period)[ \]\}\)\|\/\\]/gi, ".");

		var lnk = this.EmailLinkLink = (document.createElementNS) ? document.createElementNS("http://www.w3.org/1999/xhtml","a") : document.createElement("a");
		lnk.setAttribute("href","mailto:"+addr);
		lnk.appendChild(document.createTextNode(elt.getAttribute("title") || addr));
		elt.replaceChild(lnk, (this.EmailLinkTextNode = elt.firstChild));
	},
	destroy : function() {
		this.element.replaceChild(this.EmailLinkTextNode, this.EmailLinkLink);
		this.EmailLinkTextNode = this.EmailLinkLink = null;
	}
}

// Look for any <span class="electronic-mail">...</span> elements
// and turn each into a mailto: link.
window.onload = function() {
	var spans = document.getElementsByTagName("span");
	for(var i=0; i<spans.length; i++) {
		if(spans[i].className && spans[i].className.match("electronic-mail")) {
			new EmailLink(spans[i]);
		}
	}
}