var SamplesRegistry={init:function(callback){this.samplesDescUrl=this.getWebappBaseUrl()+"/samples.xml";this.showDeprecated=(window.location.href.indexOf("deprecated=true")>=0);this.noMenu=(window.location.href.indexOf("nomenu=true")>=0);var self=this;this.withRegistry(function(){if(!self.noMenu){self.buildTopNavigationMenu();}
if(callback){callback();}});},getWebappBaseUrl:function(){return ERDAS.misc.conf("webapp.context.path");},withRegistry:function(callback){var reg=this.registry;var self=this;if(!reg){this.loadXML(this.samplesDescUrl,function(xmlDocument){self.registry=self.parseRegistryDescriptor(xmlDocument);if(callback){callback(self.registry);}});}else{if(callback){callback(reg);}}},buildTopNavigationMenu:function(){var self=this;this.withRegistry(function(registry){var menubarBody=document.createElement("div");var menubarHolder=document.createElement("div");menubarBody.className="bd";menubarHolder.className="yui-skin-sam yuimenubar yuimenubarnav";menubarHolder.appendChild(menubarBody);document.getElementById("links").appendChild(menubarHolder);var menubar=new YAHOO.widget.MenuBar(menubarHolder,{autosubmenudisplay:true,hidedelay:750,showdelay:50,lazyload:false,zIndex:2000});var i,n,curCat,j,k,curSample,menuitem,submenu,submenuData,url;var menuHolder,menuBody;for(i=0,n=registry.categories.length;i<n;i++){curCat=registry.categories[i];menuBody=document.createElement("div");menuHolder=document.createElement("div");menuHolder.className="yuimenu";menuBody.className="bd";menuHolder.appendChild(menuBody);submenuData={id:curCat.name,itemData:[]};for(j=0,k=curCat.samples.length;j<k;j++){curSample=curCat.samples[j];if((!curSample.deprecated)||self.showDeprecated){url=self.getWebappBaseUrl()+"/"+curSample.href;submenuData.itemData.push({text:curSample.title+
(curSample.dynamic?" (dynamic load)":""),url:url});}}
menubar.addItem({text:curCat.name});menubar.getItem(i).cfg.setProperty("submenu",submenuData);}
menubar.render();});},withEachCategory:function(callback){this.withRegistry(function(registry){var i,n;for(i=0,n=registry.categories.length;i<n;i++){callback(registry.categories[i]);}});},withEachSample:function(category,callback){var i,n;for(i=0,n=category.samples.length;i<n;i++){callback(category.samples[i]);}},withSampleByHref:function(href,callback){if(!callback){return;}
var self=this;this.withEachCategory(function(cat){self.withEachSample(cat,function(sample){if(sample.href.indexOf(href)>=0){callback(sample);}});});},parseRegistryDescriptor:function(xmlDocument){var categories=[];var curCategory;var i,n,xmlCategories=xmlDocument.getElementsByTagName("category");for(i=0,n=xmlCategories.length;i<n;i++){categories.push(this.parseCategoryDescriptor(xmlCategories[i]));}
return{"categories":categories};},parseCategoryDescriptor:function(categoryElement){var samples=[];var curSample;var i,n,xmlSamples=categoryElement.getElementsByTagName("sample");for(i=0,n=xmlSamples.length;i<n;i++){samples.push(this.parseSampleDescriptor(xmlSamples[i]));}
var desc=categoryElement.getElementsByTagName("description");if(desc){desc=desc[0];}
if(desc){desc=desc.childNodes[0].nodeValue;}
return{"name":categoryElement.getAttribute("name"),"samples":samples,"description":desc||"<i>No description provided</i>"};},parseSampleDescriptor:function(sampleElement){var anchor=sampleElement.getElementsByTagName("anchor")[0].childNodes[0].nodeValue;var title=sampleElement.getElementsByTagName("title")[0].childNodes[0].nodeValue;var description=sampleElement.getElementsByTagName("description")[0].childNodes[0].nodeValue;var href=sampleElement.getElementsByTagName("href")[0].childNodes[0].nodeValue;var deprecated=sampleElement.getElementsByTagName("deprecated").length>0;var dynload=sampleElement.getElementsByTagName("dynload").length>0;return{"anchor":anchor,"title":title,"description":description,"href":href,"deprecated":deprecated,"dynamic":dynload};},loadXML:function(url,callback){var xmlReq;var stateChangeHandler=function(){if(xmlReq.readyState===4){if(xmlReq.responseXML&&xmlReq.responseXML.documentElement){callback(xmlReq.responseXML.documentElement);}else{callback(xmlReq);}}};if(typeof ActiveXObject!=="undefined"){xmlReq=new ActiveXObject("Msxml2.DOMDocument.3.0");xmlReq.async=true;xmlReq.onreadystatechange=stateChangeHandler;xmlReq.load(url);}else{if(typeof XMLHttpRequest!=='undefined'){xmlReq=new XMLHttpRequest();}
if(xmlReq){xmlReq.onreadystatechange=stateChangeHandler;}else{alert("Cannot fetch document @ \""+url+"\": cannot use XMLHttpRequest (or equivalent)");return;}
xmlReq.open("GET",url,true);xmlReq.send("");}}};