function filesinnewwindow() {
    var filetypes = ['pdf', 'doc'];
    var contentarea = jq(getContentArea());
    contentarea.find('a[href*=.]').each{
        var node = jq(this);
        var link = node.attr('href');
        var extension = link.substr(link.length - 3, 3);
        for(var i=0; i++; i<filetypes.length){
            if(extension==filetypes[i]){
                jq(this).attr('target', '_blank');
            }
        }
    }
};