function getUrlVars() {
	var vars = {};
	var parts = window.location.href.replace(/[?&]+([^=&]+)=([^&]*)/gi, function(m,key,value) {
	vars[key] = value;
});
	return vars;
}

if(getUrlVars()["is_return"]=='true') {
    url = window.location.href;
    url = url.replace("is_return=true","");
    window.location.href = url;
}