var Sawbuck = window.Sawbuck || {}; Sawbuck.HashManager = (function() { var originalHash = window.location.hash.substr(1); var currentHash = originalHash; var isIE7orLess = (navigator.userAgent.match(/^.+MSIE\s[0-7]\..+$/)) ? true : false; var eventHandlers = new Array(); var timer = null; var checkHashDelegate, suppress; if (!isIE7orLess) { checkHashDelegate = Sawbuck.Utilities.createDelegate(this, checkHash); checkHash(); } function checkHash() { var hash = window.location.hash.substr(1); if (hash != currentHash) { raise({ "hash": hash, "app": false }); currentHash = hash; } timer = setTimeout(checkHashDelegate, 100); } function raise(args) { for (var i = 0; i < eventHandlers.length; i++) { eventHandlers[i](args); } } return { getOriginalHash: function() { return originalHash; }, getCurrentHash: function() { return currentHash; }, addHandler: function(eventHandler) { eventHandlers.push(eventHandler); }, newHash: function(hash) { if (currentHash != hash) { if (isIE7orLess) { suppress = true; location.hash = hash || "#"; try { var doc = document.getElementById("historyFrame").contentWindow.document; doc.open("javascript:''"); doc.write("parent.Sawbuck.HashManager.onFrameLoaded('" + hash + "');"); doc.close(); } catch (e) { } } else { currentHash = hash; location.hash = hash || "#"; raise({ "hash": hash, "app": true }); } } }, onFrameLoaded: function(hash) { if (isIE7orLess) { if (hash == "original") { if (originalHash.length > 0) { location.hash = originalHash || "#"; raise({ "hash": originalHash, "app": suppress }); currentHash = originalHash; } else { location.hash = "#"; raise({ "hash": "", "app": suppress }); currentHash = ""; } } else { location.hash = hash || "#"; raise({ "hash": hash, "app": suppress }); currentHash = hash; } suppress = false; } } } })();