function addEventHandler(obj, eventType, handler) {
    if (window.opera && obj.addEventListener) {
        obj.addEventListener(eventType, handler, false);
        return true;
    } else if (obj.addEventListener) {
        obj.addEventListener(eventType, handler, true);
        return true;
    } else if (obj.attachEvent) {
        var r = obj.attachEvent("on"+eventType, handler);
        return r;
    } else {
        return false;
    }
}
function getElementsByClass(searchClass,node,tag) {
	var classElements = new Array();
	if ( node == null )
		node = document;
	if ( tag == null )
		tag = '*';
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var pattern = new RegExp("(^|\\\\s)"+searchClass+"(\\\\s|$)");
	for (i = 0, j = 0; i < elsLen; i++) {
		if ( pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements;
}
function emailcsere() {
  var emailek = getElementsByClass('email',document,'*');
  for (i=0; i<emailek.length; i++) {
    emailek[i].innerHTML= emailek[i].innerHTML.replace(/\[pont\]/g,".");
    emailek[i].innerHTML= emailek[i].innerHTML.replace(/\[kukac\]/g,"@");
  }
}
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";
	}  
}   
addEventHandler(window,'load',emailcsere);
addEventHandler(window,'load',externalLinks);