keepurl

function sanitizeNode(node) {
    if (node.tagName != 'A')
        return;

    node.removeAttribute('onmousedown');
}

function walk(node) {
    // thanks to: http://is.gd/mwZp7E
    switch (node.nodeType) {
        case  1: // Node.ELEMENT_NODE
            sanitizeNode(node);
        case  9: // Node.DOCUMENT_NODE
        case 11: // Node.DOCUMENT_FRAGMENT_NODE
            var child = node.firstChild;
            while (child) {
                var next = child.nextSibling;
                walk(child);
                child = next;
            }
            break;
    }
}

walk(document.body);