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/*
Copyright (c) 2011, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.com/yui/license.html
version: 2.9.0
*/
YAHOO.util.History=(function(){var d=null;var m=null;var g=false;var e=[];var c=[];function k(){var o,n;n=self.location.href;o=n.indexOf("#");return o>=0?n.substr(o+1):null;}function b(){var o,p,q=[],n=[];for(o in e){if(YAHOO.lang.hasOwnProperty(e,o)){p=e[o];q.push(o+"="+p.initialState);n.push(o+"="+p.currentState);}}m.value=q.join("&")+"|"+n.join("&");}function j(n){var s,t,o,q,r,v,u,p;if(!n){for(o in e){if(YAHOO.lang.hasOwnProperty(e,o)){q=e[o];q.currentState=q.initialState;q.onStateChange(i(q.currentState));}}return;}r=[];v=n.split("&");for(s=0,t=v.length;s<t;s++){u=v[s].split("=");if(u.length===2){o=u[0];p=u[1];r[o]=p;}}for(o in e){if(YAHOO.lang.hasOwnProperty(e,o)){q=e[o];p=r[o];if(!p||q.currentState!==p){q.currentState=typeof p==="undefined"?q.initialState:p;q.onStateChange(i(q.currentState));}}}}function l(q){var n,p;n='<html><body><div id="state">'+YAHOO.lang.escapeHTML(q)+"</div></body></html>";try{p=d.contentWindow.document;p.open();p.write(n);p.close();return true;}catch(o){return false;}}function h(){var q,n,p,o;if(!d.contentWindow||!d.contentWindow.document){setTimeout(h,10);return;}q=d.contentWindow.document;n=q.getElementById("state");p=n?n.innerText:null;o=k();setInterval(function(){var w,s,t,u,v,r;q=d.contentWindow.document;n=q.getElementById("state");w=n?n.innerText:null;v=k();if(w!==p){p=w;j(p);if(!p){s=[];for(t in e){if(YAHOO.lang.hasOwnProperty(e,t)){u=e[t];s.push(t+"="+u.initialState);}}v=s.join("&");}else{v=p;}self.location.hash=v;o=v;b();}else{if(v!==o){o=v;l(v);}}},50);g=true;YAHOO.util.History.onLoadEvent.fire();}function f(){var u,w,s,y,o,q,x,r,v,p,n,t;s=m.value.split("|");if(s.length>1){x=s[0].split("&");for(u=0,w=x.length;u<w;u++){y=x[u].split("=");if(y.length===2){o=y[0];r=y[1];q=YAHOO.lang.hasOwnProperty(e,o)&&e[o];if(q){q.initialState=r;}}}v=s[1].split("&");for(u=0,w=v.length;u<w;u++){y=v[u].split("=");if(y.length>=2){o=y[0];p=y[1];q=YAHOO.lang.hasOwnProperty(e,o)&&e[o];if(q){q.currentState=p;}}}}if(s.length>2){c=s[2].split(",");}if(YAHOO.env.ua.ie){if(typeof document.documentMode==="undefined"||document.documentMode<8){h();}else{YAHOO.util.Event.on(top,"hashchange",function(){var z=k();j(z);b();});g=true;YAHOO.util.History.onLoadEvent.fire();}}else{t=k();setInterval(function(){var B,z,A;z=k();if(z!==t){t=z;j(t);b();}},50);g=true;YAHOO.util.History.onLoadEvent.fire();}}function i(n){return decodeURIComponent(n.replace(/\+/g," "));}function a(n){return encodeURIComponent(n).replace(/%20/g,"+");}return{onLoadEvent:new YAHOO.util.CustomEvent("onLoad"),onReady:function(n,o,p){if(g){setTimeout(function(){var q=window;if(p){if(p===true){q=o;}else{q=p;}}n.call(q,"onLoad",[],o);},0);}else{YAHOO.util.History.onLoadEvent.subscribe(n,o,p);}},register:function(p,n,r,s,t){var q,o;if(typeof p!=="string"||YAHOO.lang.trim(p)===""||typeof n!=="string"||typeof r!=="function"){throw new Error("Missing or invalid argument");}if(YAHOO.lang.hasOwnProperty(e,p)){return;}if(g){throw new Error("All modules must be registered before calling YAHOO.util.History.initialize");}p=a(p);n=a(n);q=null;if(t===true){q=s;}else{q=t;}o=function(u){return r.call(q,u,s);};e[p]={name:p,initialState:n,currentState:n,onStateChange:o};},initialize:function(n,o){if(g){return;}if(YAHOO.env.ua.opera&&typeof history.navigationMode!=="undefined"){history.navigationMode="compatible";}if(typeof n==="string"){n=document.getElementById(n);}if(!n||n.tagName.toUpperCase()!=="TEXTAREA"&&(n.tagName.toUpperCase()!=="INPUT"||n.type!=="hidden"&&n.type!=="text")){throw new Error("Missing or invalid argument");}m=n;if(YAHOO.env.ua.ie&&(typeof document.documentMode==="undefined"||document.documentMode<8)){if(typeof o==="string"){o=document.getElementById(o);}if(!o||o.tagName.toUpperCase()!=="IFRAME"){throw new Error("Missing or invalid argument");}d=o;}YAHOO.util.Event.onDOMReady(f);},navigate:function(o,p){var n;if(typeof o!=="string"||typeof p!=="string"){throw new Error("Missing or invalid argument");}n={};n[o]=p;return YAHOO.util.History.multiNavigate(n);},multiNavigate:function(o){var n,p,r,q,s;if(typeof o!=="object"){throw new Error("Missing or invalid argument");}if(!g){throw new Error("The Browser History Manager is not initialized");}for(p in o){if(!YAHOO.lang.hasOwnProperty(e,a(p))){throw new Error("The following module has not been registered: "+p);}}n=[];for(p in e){if(YAHOO.lang.hasOwnProperty(e,p)){r=e[p];if(YAHOO.lang.hasOwnProperty(o,p)){q=o[i(p)];}else{q=i(r.currentState);}p=a(p);q=a(q);n.push(p+"="+q);}}s=n.join("&");if(YAHOO.env.ua.ie&&(typeof document.documentMode==="undefined"||document.documentMode<8)){return l(s);}else{self.location.hash=s;return true;}},getCurrentState:function(n){var o;if(typeof n!=="string"){throw new Error("Missing or invalid argument");}if(!g){throw new Error("The Browser History Manager is not initialized");}o=YAHOO.lang.hasOwnProperty(e,n)&&e[n];if(!o){throw new Error("No such registered module: "+n);}return i(o.currentState);},getBookmarkedState:function(s){var r,o,n,u,p,t,q;if(typeof s!=="string"){throw new Error("Missing or invalid argument");}n=self.location.href.indexOf("#");if(n>=0){u=self.location.href.substr(n+1);p=u.split("&");for(r=0,o=p.length;r<o;r++){t=p[r].split("=");if(t.length===2){q=t[0];if(q===s){return i(t[1]);}}}}return null;},getQueryStringParameter:function(s,p){var q,o,n,u,t,r;p=p||self.location.href;n=p.indexOf("?");u=n>=0?p.substr(n+1):p;n=u.lastIndexOf("#");u=n>=0?u.substr(0,n):u;t=u.split("&");for(q=0,o=t.length;q<o;q++){r=t[q].split("=");if(r.length>=2){if(r[0]===s){return i(r[1]);}}}return null;}};})();YAHOO.register("history",YAHOO.util.History,{version:"2.9.0",build:"2800"});
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