/*

sessvars ver 1.01 - JavaScript based session object
copyright 2008 Thomas Frank

This EULA grants you the following rights:
- Installation and Use. You may install and use an unlimited number of copies of the SOFTWARE PRODUCT.
- Reproduction and Distribution. You may reproduce and distribute an unlimited number of copies of the SOFTWARE PRODUCT either in whole or in part; each copy should include all copyright and trademark notices, and shall be accompanied by a copy of this EULA. Copies of the SOFTWARE PRODUCT may be distributed as a standalone product or included with your own product.
- Commercial Use. You may sell for profit and freely distribute scripts and/or compiled scripts that were created with the SOFTWARE PRODUCT.

*/

sessvars = function() { var x = {}; x.$ = { prefs: { memLimit: 2000, autoFlush: true, crossDomain: false, includeProtos: false, includeFunctions: false }, parent: x, clearMem: function() { for (var i in this.parent) { if (i != "$") { this.parent[i] = undefined } } this.flush() }, usedMem: function() { x = {}; return Math.round(this.flush(x) / 1024) }, usedMemPercent: function() { return Math.round(this.usedMem() / this.prefs.memLimit) }, flush: function(x) { var y, o = {}, j = this.$$; x = x || top; for (var i in this.parent) { o[i] = this.parent[i] } o.$ = this.prefs; j.includeProtos = this.prefs.includeProtos; j.includeFunctions = this.prefs.includeFunctions; y = this.$$.make(o); if (x != top) { return y.length } if (y.length / 1024 > this.prefs.memLimit) { return false } x.name = y; return true }, getDomain: function() { var l = location.href; l = l.split("///").join("//"); l = l.substring(l.indexOf("://") + 3).split("/")[0]; while (l.split(".").length > 2) { l = l.substring(l.indexOf(".") + 1) } return l }, debug: function(t) { var t = t || this, a = arguments.callee; if (!document.body) { setTimeout(function() { a(t) }, 200); return } t.flush(); var d = document.getElementById("sessvarsDebugDiv"); if (!d) { d = document.createElement("div"); document.body.insertBefore(d, document.body.firstChild) } d.id = "sessvarsDebugDiv"; d.innerHTML = '<div style="line-height:20px;padding:5px;font-size:11px;font-family:Verdana,Arial,Helvetica;z-index:10000;background:#FFFFCC;border: 1px solid #333;margin-bottom:12px"><b style="font-family:Trebuchet MS;font-size:20px">sessvars.js - debug info:</b><br/><br/>Memory usage: ' + t.usedMem() + " Kb (" + t.usedMemPercent() + '%)&nbsp;&nbsp;&nbsp;<span style="cursor:pointer"><b>[Clear memory]</b></span><br/>' + top.name.split("\n").join("<br/>") + "</div>"; d.getElementsByTagName("span")[0].onclick = function() { t.clearMem(); location.reload() } }, init: function() { var o = {}, t = this; try { o = this.$$.toObject(top.name) } catch (e) { o = {} } this.prefs = o.$ || t.prefs; if (this.prefs.crossDomain || this.prefs.currentDomain == this.getDomain()) { for (var i in o) { this.parent[i] = o[i] } } else { this.prefs.currentDomain = this.getDomain() } this.parent.$ = t; t.flush(); var f = function() { if (t.prefs.autoFlush) { t.flush() } }; if (window.addEventListener) { addEventListener("unload", f, false) } else { if (window.attachEvent) { window.attachEvent("onunload", f) } else { this.prefs.autoFlush = false } } } }; x.$.$$ = { compactOutput: false, includeProtos: false, includeFunctions: false, detectCirculars: true, restoreCirculars: true, make: function(arg, restore) { this.restore = restore; this.mem = []; this.pathMem = []; return this.toJsonStringArray(arg).join("") }, toObject: function(x) { if (!this.cleaner) { try { this.cleaner = new RegExp('^("(\\\\.|[^"\\\\\\n\\r])*?"|[,:{}\\[\\]0-9.\\-+Eaeflnr-u \\n\\r\\t])+?$') } catch (a) { this.cleaner = /^(true|false|null|\[.*\]|\{.*\}|".*"|\d+|\d+\.\d+)$/ } } if (!this.cleaner.test(x)) { return {} } eval("this.myObj=" + x); if (!this.restoreCirculars || !alert) { return this.myObj } if (this.includeFunctions) { var x = this.myObj; for (var i in x) { if (typeof x[i] == "string" && !x[i].indexOf("JSONincludedFunc:")) { x[i] = x[i].substring(17); eval("x[i]=" + x[i]) } } } this.restoreCode = []; this.make(this.myObj, true); var r = this.restoreCode.join(";") + ";"; eval('r=r.replace(/\\W([0-9]{1,})(\\W)/g,"[$1]$2").replace(/\\.\\;/g,";")'); eval(r); return this.myObj }, toJsonStringArray: function(arg, out) { if (!out) { this.path = [] } out = out || []; var u; switch (typeof arg) { case "object": this.lastObj = arg; if (this.detectCirculars) { var m = this.mem; var n = this.pathMem; for (var i = 0; i < m.length; i++) { if (arg === m[i]) { out.push('"JSONcircRef:' + n[i] + '"'); return out } } m.push(arg); n.push(this.path.join(".")) } if (arg) { if (arg.constructor == Array) { out.push("["); for (var i = 0; i < arg.length; ++i) { this.path.push(i); if (i > 0) { out.push(",\n") } this.toJsonStringArray(arg[i], out); this.path.pop() } out.push("]"); return out } else { if (typeof arg.toString != "undefined") { out.push("{"); var first = true; for (var i in arg) { if (!this.includeProtos && arg[i] === arg.constructor.prototype[i]) { continue } this.path.push(i); var curr = out.length; if (!first) { out.push(this.compactOutput ? "," : ",\n") } this.toJsonStringArray(i, out); out.push(":"); this.toJsonStringArray(arg[i], out); if (out[out.length - 1] == u) { out.splice(curr, out.length - curr) } else { first = false } this.path.pop() } out.push("}"); return out } } return out } out.push("null"); return out; case "unknown": case "undefined": case "function": if (!this.includeFunctions) { out.push(u); return out } arg = "JSONincludedFunc:" + arg; out.push('"'); var a = ["\n", "\\n", "\r", "\\r", '"', '\\"']; arg += ""; for (var i = 0; i < 6; i += 2) { arg = arg.split(a[i]).join(a[i + 1]) } out.push(arg); out.push('"'); return out; case "string": if (this.restore && arg.indexOf("JSONcircRef:") == 0) { this.restoreCode.push("this.myObj." + this.path.join(".") + "=" + arg.split("JSONcircRef:").join("this.myObj.")) } out.push('"'); var a = ["\n", "\\n", "\r", "\\r", '"', '\\"']; arg += ""; for (var i = 0; i < 6; i += 2) { arg = arg.split(a[i]).join(a[i + 1]) } out.push(arg); out.push('"'); return out; default: out.push(String(arg)); return out } } }; x.$.init(); return x } ();