function StoriesIndex()
{
    this.scripts = new Array();
    this.stories = new Array();
    this.searchScripts = new Array();
    this.searchStories = new Array();
    this.searchCounts = new Array();
    
    if(typeof StoriesIndex._initialized == "undefined")
    {
        //Function used to add filters
        //  type = search type
        //  cat = category
        //  start = start of results
        //  end = end of results
        StoriesIndex.prototype.addFilter = function(type,cat,start,count,label)
        {            
            var arIndex = this.scripts.length - 1;
            if(arIndex < 0)arIndex = 0;            
            this.scripts.push(new Filter(type,cat,start,count,label));           
        };
        
        StoriesIndex.prototype.addSearch = function(query,start,count,searchOrder,label)
        {            
            var arIndex = this.scripts.length - 1;
            if(arIndex < 0)arIndex = 0;            
            this.searchScripts.push(new Search(query,start,count,searchOrder,label));           
        };
        
        StoriesIndex.prototype.load = function()//Function used to load ajax calls from object 'Filter'
        {
            for(var i = 0; i < this.scripts.length; i++)
            {
                this.extractViewResults(this.scripts[i].loadAjax(),this.scripts[i].label);
            }
        };
        
        StoriesIndex.prototype.loadSearch = function()//Function used to load ajax calls from object 'Filter'
        {
            for(var i = 0; i < this.searchScripts.length; i++)
            {
                this.extractSearchResults(this.searchScripts[i].loadAjax(),this.searchScripts[i].label);
            }
        };
        
        StoriesIndex.prototype.loadSearchCount = function()//Function used to load ajax calls from object 'Filter'
        {
            if(!this.searchScripts)return null;
            for(var i = 0; i < this.searchScripts.length; i++)
            {
                eval(this.searchScripts[i].loadCountAjax());
                if(this.searchScripts[i].label)
                {
                    var newSearchCount = eval('searchElements' + this.searchScripts[i].label);
                } else {
                            var newSearchCount = searchElements;
                       }
                this.searchCounts[i] = parseInt(newSearchCount);
                newSearchCount = null;
            }
        };
        
        StoriesIndex.prototype.extractSearchResults = function(funcStr,label)
        {
            eval(funcStr);   
            if(label)
            {
                var newSearchResults = eval('searchResults' + label);
            } else {
                        var newSearchResults = searchResults;
                   }      
            if(typeof newSearchResults == "object" && newSearchResults.length > 0)
            {
                for(var i = 1; i < newSearchResults.length; i++)
                {
                    if(unescape(newSearchResults[i].viewTitle) != 'No items available.')
                    {
                        this.searchStories.push(new ArticleSearchObject(newSearchResults[i].viewDocID,newSearchResults[i].viewTitle,newSearchResults[i].viewSummary,newSearchResults[i].viewArticleAuthorName,newSearchResults[i].viewPageDate,newSearchResults[i].viewIssue,newSearchResults[i].viewSection,newSearchResults[i].viewCategories,newSearchResults[i].viewGeography,newSearchResults[i].viewCompanies,newSearchResults[i].viewTreePath));
                    }
                }
            }
            newSearchResults = null;
        };
        
        //Function used to extract results from ajax call
        // funcStr = text response from ajax call
        StoriesIndex.prototype.extractViewResults = function(funcStr)
        {
            eval(funcStr);            
            if(typeof viewResults == "object" && viewResults.length > 0)
            {
                for(var i = 1; i < viewResults.length; i++)
                {
                    this.stories.push(new ArticleObject(viewResults[i].viewDocID,viewResults[i].viewTitle,viewResults[i].viewSummary,viewResults[i].viewArticleAuthorName,viewResults[i].viewPageDate,viewResults[i].viewIssue,viewResults[i].viewSection,viewResults[i].viewStoryAccess,viewResults[i].viewParentID,viewResults[i].viewCategories,viewResults[i].viewGeography,viewResults[i].viewCompanies,viewResults[i].viewTreePath));
                }
            }
            viewResults = null;
        };
        
       
        StoriesIndex.prototype.recreateViewResults = function()
        {
            viewResults = new Array();
            for(var i = 0; i < this.stories.length; i++)
            {
                viewResults.push(this.stories[i].copy());
            }
            
            
            var oText = document.createElement('textarea');
            oText.id = 'displayBox';
            oText.setAttribute('rows','100');
            oText.setAttribute('cols','80');
            document.getElementById('edDeskBody').appendChild(oText);
           
            var str = "";
            for(var i =0; i < viewResults.length; i++)
            {
                str += '\n' + unescape(viewResults[i].viewPageDate) + "   " + unescape(viewResults[i].viewSection);                
            }
            document.getElementById('displayBox').value = '\n\n' + str;
            
        };
       
        
        //Function to sort stories in chronological order
        // storiesCount = number of items to be stores in variable 'stories'
        StoriesIndex.prototype.sortStories = function(storiesCount)
        {
        /*
            var oText = document.createElement('textarea');
            oText.id = 'displayBox';
            oText.style.position = "absolute";
            oText.setAttribute('rows','60');
            oText.setAttribute('cols','100');
            document.getElementById('edDeskBody').appendChild(oText);
            var str = "";
            for(var i =0; i < this.stories.length; i++)
            {
                str += '\n' + unescape(this.stories[i].viewPageDate) + "   " + unescape(this.stories[i].viewSection) + "   " + (unescape(this.stories[i].viewTitle)).substring(0,10);                
            }
            document.getElementById('displayBox').value =  str;
            
            
            var sortStr = "";
           */ 
           
           
            var tempArray = new Array();
            //tempArray.push(this.stories[0]);
            for(var i = 0; i < this.stories.length; i++)
            {
                tempArray.push(this.stories[i]);
            }
            
            
            for(var i = 0; i < tempArray.length; i++)
            {                
                //sortStr += '\n\n' + i + ' '; 
                for(var n = i + 1 ; n < tempArray.length; n++)
                {
                    var curDate = this.createDate(tempArray[i].viewPageDate);
                    var newDate = this.createDate(tempArray[n].viewPageDate);
                    //alert(curDate.toString() + "   " + newDate.toString());
                    if(newDate > curDate)
                    {
                        var tempStory = tempArray[i];
                        tempArray[i] = tempArray[n];
                        tempArray[n] = tempStory;
                        //sortStr += '| i:' + i + ' n:' + n;
                    }
                }
            }
            
            
            if(storiesCount > tempArray.length)
            {
                var count = tempArray.length;
            } else {
                        var count = storiesCount;
                   }
            
            this.stories = new Array();
            for(var i = 0; i < count; i ++)
            {
                this.stories.push(tempArray[i].copy());
            }
            
            /*
            
           
            var str = "";
            for(var i =0; i < this.stories.length; i++)
            {
                str += '\n' + unescape(this.stories[i].viewPageDate) + "   " + unescape(this.stories[i].viewSection) + "   " + (unescape(this.stories[i].viewTitle)).substring(0,10);                
            }
            
            document.getElementById('displayBox').value = document.getElementById('displayBox').value + '\n\n' + str + sortStr;
            */
        };
        
        StoriesIndex.prototype.createDate = function(aDate)
		{
		   var arDate = (unescape(aDate)).split('/');
		   return new Date(Date.UTC(arDate[2],((parseFloat(arDate[1])) - 1).toString(),arDate[0]));			          
		   
		};
		
        StoriesIndex.prototype.removeSearchCurArticle = function()
        {
            var tempArray = new Array();
            for(var i = 0; i < this.searchStories.length; i++)
            {
               var curDocId = (document.forms[0].DocID && document.forms[0].DocID.value.length > 0) ? document.forms[0].DocID.value : null;
               var story = this.searchStories[i];
               if(!curDocId || curDocId != story.viewDocID)//if article is not currently displayed
               {
                    tempArray.push(story);
               }
            }
            this.searchStories = tempArray;
        };
    }
    StoriesIndex._initialized = true;
}

function Filter(type,cat,start,count,label)//Object to manage ajax calls
{
    this.type = type;
    this.cat = cat;
    this.start = start;
    this.count = count;
    this.label = label;
    
    if(typeof Filter._intialized == "undefined")
    {
        Filter.prototype.getURL = function()//Function used to build url with filter
        {
            var myDate = new Date();
            var t = myDate.getTime();
            if(this.label)
            {
                return Filter._urlPrefix + '&type=' + this.type + '&cat=' + escape(this.cat) + '&start=' + this.start + '&count=' + this.count + '&t=' + t + '&label=' + this.label; 
            } else {
                        return Filter._urlPrefix + '&type=' + this.type + '&cat=' + escape(this.cat) + '&start=' + this.start + '&count=' + this.count + '&t=' + t; 
            }
        };
        
        Filter.prototype.loadAjax = function()//Function used to make the ajax call
        {           
            var oXHR = createXHR();
            oXHR.open('GET',this.getURL(),false);
            oXHR.send(null);           
            
            return oXHR.responseText;
        };
    }
    Filter._initialiazed = true;
    Filter._urlPrefix = '/wheels/site/filter.js?readform'; // static var used to store the url prefix of search
}
/*
function loadViewResults()
{
    alert(viewResults.length);
}
*/

// mimic viewResults
function ArticleObject(viewDocID,viewTitle,viewSummary,viewArticleAuthorName,viewPageDate,viewIssue,viewSection,viewStoryAccess,viewParentID,viewCategories,viewGeography,viewCompanies,viewTreePath)
{
    this.viewDocID=viewDocID; this.viewTitle=viewTitle; this.viewSummary=viewSummary; this.viewArticleAuthorName=viewArticleAuthorName; this.viewPageDate=viewPageDate; this.viewIssue=viewIssue; this.viewSection=viewSection; this.viewStoryAccess=viewStoryAccess; this.viewParentID=viewParentID; this.viewCategories=viewCategories; this.viewGeography=viewGeography; this.viewCompanies=viewCompanies; this.viewTreePath=viewTreePath;
    if(typeof ArticleObject._initialized == "undefined")
    {
        ArticleObject.prototype.copy = function()
        {
            return new ArticleObject(this.viewDocID,this.viewTitle,this.viewSummary,this.viewArticleAuthorName,this.viewPageDate,this.viewIssue,this.viewSection,this.viewStoryAccess,this.viewParentID,this.viewCategories,this.viewGeography,this.viewCompanies,this.viewTreePath);
        };
    }
}

function Search(query,start,count,searchOrder,label)//Object to manage ajax calls
{
    this.query = query;
    this.start = start;
    this.count = count;
    this.searchOrder = searchOrder;
    this.label = label;
    
    if(typeof Search._intialized == "undefined")
    {
        Search.prototype.getSearchURL = function()//Function used to build url with Search
        {
            var urlSuffix = new Array();
            urlSuffix.push('&query=' + this.query);
            if(this.start)urlSuffix.push('&start=' + this.start);
            if(this.count)urlSuffix.push('&count=' + this.count);            
            if(this.searchOrder)urlSuffix.push('&SearchOrder=' + this.searchOrder);
            if(this.label)urlSuffix.push('&label=' + this.label);
            return (Search._urlSearchPrefix + urlSuffix.join(''));
        };
        
        Search.prototype.getCountSearchURL = function()//Function used to build url with Search
        {
            var urlSuffix = new Array();
            urlSuffix.push('&query=' + this.query);            
            if(this.searchOrder)urlSuffix.push('&SearchOrder=' + this.searchOrder);
            if(this.label)urlSuffix.push('&label=' + this.label);
            return (Search._urlCountSearchPrefix + urlSuffix.join(''));
        };
        
        Search.prototype.loadAjax = function()//Function used to make the ajax call
        {           
            var oXHR = createXHR();
            oXHR.open('GET',this.getSearchURL(),false);
            oXHR.send(null);  
            return oXHR.responseText;
        };
       
        Search.prototype.loadCountAjax = function()//Function used to make the ajax call
        {           
            var oXHR = createXHR();
            oXHR.open('GET',this.getCountSearchURL(),false);
            oXHR.send(null);  
            return oXHR.responseText;
        };
        
    }
    Search._initialiazed = true;
    Search._urlSearchPrefix = '/wheels/site/search.js?open'; // static var used to store the url search prefix of search
    Search._urlCountSearchPrefix = '/wheels/site/countsearch.js?open'; // static var used to store the url count search prefix of search
}

function ArticleSearchObject(viewDocID,viewTitle,viewSummary,viewArticleAuthorName,viewPageDate,viewIssue,viewSection,viewCategories,viewGeography,viewCompanies,viewTreePath)
{
    this.viewDocID=viewDocID;
    this.viewTitle=viewTitle;
    this.viewSummary=viewSummary;
    this.viewArticleAuthorName=viewArticleAuthorName;
    this.viewPageDate=viewPageDate;
    this.viewIssue=viewIssue;
    this.viewSection=viewSection;
    this.viewCategories=viewCategories;
    this.viewGeography=viewGeography;
    this.viewCompanies=viewCompanies;
    this.viewTreePath=viewTreePath;
    
    if(typeof ArticleSearchObject._initialized == "undefined")
    {
        ArticleSearchObject.prototype.copy = function()
        {
            return new ArticleSearchObject(this.viewDocID,this.viewTitle,this.viewSummary,this.viewArticleAuthorName,this.viewPageDate,this.viewIssue,this.viewSection,this.viewCategories,this.viewGeography,this.viewCompanies,this.viewTreePath);
        };
    }
    ArticleSearchObject._initialized = true;
}

function createXHR() //create cross-browser XHR object
{
    if (typeof XMLHttpRequest != "undefined") 
    {
        return new XMLHttpRequest();
    } else if (window.ActiveXObject) 
           {
        var aVersions = [ "MSXML2.XMLHttp.6.0", "MSXML2.XMLHttp.3.0"];
        for (var i = 0; i < aVersions.length; i++) 
        {
            try {
                var oXHR = new ActiveXObject(aVersions[i]);
                return oXHR;
            } catch (oError) {
            //Do nothing
            }
        }
    }
    throw new Error("XMLHttp object could not be created.");
}