var chars = "abcdefghijlmnopqrstuvwxyzABCDEFGHIJLMNOPQRSTUVWXYZ";
var popupUrl = "http://messenger.providesupport.com/messenger/%key%.html";

var id = (function (c) {
	var ret = "";

	for (var i = 0; i < c; ++i)
		ret += chars[Math.floor(Math.random() * chars.length)];

	return ret;
})(20);

function openChatWindow() {
	var url = popupUrl; //+ "?ps_s=" + id;
	window.open(url, "_blank", "menubar=0,location=0,scrollbars=auto,resizable=1,status=0,width=555,height=500");
}