/*
	--------------------------------------------------------------------------
	$Id: spamspan.js 5 2007-09-29 15:56:26Z moltar $
	--------------------------------------------------------------------------
	Version: 1.03
	Release date: 13/05/2006
	Last update: 07/01/2007
	(c) 2006 SpamSpan (www.spamspan.com)
	This program is distributed under the terms of the GNU General Public
	Licence version 2, available at http://www.gnu.org/licenses/gpl.txt
	--------------------------------------------------------------------------
*/
var spamSpanMainClass		= 'spamspan';
var spamSpanUserClass		= 'u';
var spamSpanDomainClass		= 'd';
var spamSpanAnchorTextClass = 't';
var spamSpanParams			= new Array('subject', 'body');
function spamSpan() {
var allSpamSpans = getElementsByClass(spamSpanMainClass, document, 'span');
for (var i = 0; i < allSpamSpans.length; i++) {

var user = getSpanValue(spamSpanUserClass, allSpamSpans[i]);
var domain = getSpanValue(spamSpanDomainClass, allSpamSpans[i]);
var anchorText = getSpanValue(spamSpanAnchorTextClass, allSpamSpans[i]);
var paramValues = new Array();
for (var j = 0; j < spamSpanParams.length; j++) {
var paramSpanValue = getSpanValue(spamSpanParams[j], allSpamSpans[i]);
if (paramSpanValue) {
paramValues.push(spamSpanParams[j] + '=' +
encodeURIComponent(paramSpanValue));
}
}
var at = String.fromCharCode(32*2);
var email = cleanSpan(user) + at + cleanSpan(domain);
var anchorTagText = document.createTextNode(anchorText ? anchorText : email);
var mto = String.fromCharCode(109,97,105,108,116,111,58);
var hrefAttr = mto + email;
hrefAttr += paramValues.length ? '?' + paramValues.join('&') : '';
var anchorTag = document.createElement('a');
anchorTag.className = spamSpanMainClass;
anchorTag.setAttribute('href', hrefAttr);
anchorTag.appendChild(anchorTagText);
allSpamSpans[i].parentNode.replaceChild(anchorTag, allSpamSpans[i]);
}
}
function getElementsByClass(searchClass, scope, tag) {
var classElements = new Array();
if (scope == null) node = document;
if (tag == null) tag = '*';
var els = scope.getElementsByTagName(tag);
var elsLen = els.length;
var pattern = new RegExp("(^|\s)"+searchClass+"(\s|$)");
for (var i = 0, j = 0; i < elsLen; i++) {
if ( pattern.test(els[i].className) ) {
classElements[j] = els[i];
j++;
}
}
return classElements;
}
function getSpanValue(searchClass, scope) {
var span = getElementsByClass(searchClass, scope, 'span');
if (span[0]) {
return span[0].firstChild.nodeValue;
} else {
return false;
}
}
function cleanSpan(string) {
string = string.replace(/[\[\(\{]?[dD][oO0][tT][\}\)\]]?/g, '.');
string = string.replace(/\s+/g, '');
return string;
}
function addEvent(obj, type, fn) {
if (obj.addEventListener)
obj.addEventListener(type, fn, false);
else if (obj.attachEvent)
{
obj['e' + type + fn] = fn;
obj[type + fn] = function() { obj['e' + type + fn](window.event); }
obj.attachEvent('on' + type, obj[type + fn]);
}
}
function fileLinks() {
var fileLink;
if (document.getElementsByTagName('a')) {
for (var i = 0; (fileLink = document.getElementsByTagName('a')[i]);i++) {
if (fileLink.href.indexOf('.pdf') != -1) {
fileLink.setAttribute('target', '_blank');
fileLink.className = 'pdfLink';
}
if (fileLink.href.indexOf('.doc') != -1) {
fileLink.setAttribute('target', '_blank');
fileLink.className = 'docLink';
}
if (fileLink.href.indexOf('.zip') != -1) {
fileLink.className = 'zipLink';
}
}
}
}
function externalLinks() {  
 if (!document.getElementsByTagName) return;  
 var anchors = document.getElementsByTagName("a");  
 for (var i=0; i<anchors.length; i++) {  
   var anchor = anchors[i];  
   if (anchor.getAttribute("href") &&  
       anchor.getAttribute("rel") == "external")  
     anchor.target = "_blank";  
 }  
}  
addEvent(window, 'load', spamSpan);
addEvent(window, 'load', fileLinks);
addEvent(window, 'load', externalLinks);