function init() {
	    createExternalLinks();
    }

    function createExternalLinks() {
        if(document.getElementsByTagName) {
            var anchors = document.getElementsByTagName('a');
            for(var i=0; i<anchors.length; i++) {
                var anchor = anchors[i];
                if(anchor.getAttribute("href") && anchor.getAttribute('rel')=='externo') {
                    anchor.target = '_blank';
                    var title = anchor.title + ' (Este link abre uma nova janela)';
                    anchor.title = title;
                }
            }
        }
    }