function change_external_link_targets() {
    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";
	}
    }

    return;
}


function change_form_targets() {
    var forms = document.getElementsByTagName("form");
    
    for (var i = 0; i < forms.length; i++) {
	var form = forms[i];
	
	if (form.className.indexOf("paypal") >= 0) {
	    form.target = "_blank";
	}
    }

    return;
}


change_external_link_targets();
change_form_targets();