// Code borrowed from: http://stackoverflow.com/questions/901115/how-can-i-get-query-string-values-in-javascript
function getParameterByName(name, url) {
    if (!url) url = window.location.href;
    url = url.toLowerCase(); // This is just to avoid case sensitiveness  
    name = name.replace(/[\[\]]/g, "\\$&").toLowerCase();// This is just to avoid case sensitiveness for query parameter name
    var regex = new RegExp("[?&]" + name + "(=([^&#]*)|&|#|$)"),
	results = regex.exec(url);
    if (!results) return null;
    if (!results[2]) return '';
    return decodeURIComponent(results[2].replace(/\+/g, " "));
}

function redirect(newUrl) {
    var n0 = getParameterByName("n0");
    var n1 = getParameterByName("n1");
    var n2 = getParameterByName("n2");
    var p0 = getParameterByName("p0");
    var fb_comment_id = getParameterByName("fb_comment_id");
    
    if (fb_comment_id)
	newUrl += "fb_comment_id=" + fb_comment_id;
    else {
	if (n0)
	    newUrl += "n0=" + n0;
	if (n1)
	    newUrl += "&n1=" + n1;
	if (n2)
	    newUrl += "&n2=" + n2;
	if (p0)
	    newUrl += "&p0=" + p0;
    }
    window.location.href = newUrl;
}