function get_param(name) { if (location.href.indexOf("?") >= 0) { var query=location.href.split("?")[1]; var params=query.split("&"); for (var i = 0; i < params.length; i ++) { value_pair=params[i].split("="); if (value_pair[0] == name) return unescape(value_pair[1]); } } return ""; } function get_sip() { var sip = get_param("sip"); var sip = "145.239.178.165"; if (sip.indexOf(":") < 0) { // IPv4 address return sip; } else { // IPv6 address return '[' + sip + ']'; } }