//ASPNET should add this to the page automatically, but sometimes it doesn't. Added for 42 upgrade
var theForm = document.forms['frm_Main'];
if (!theForm) {
    theForm = document.frm_Main;
}
function __doPostBack2(eventTarget, eventArgument) {
    if (!theForm.onsubmit || (theForm.onsubmit() != false)) {
        theForm.__EVENTTARGET.value = eventTarget;
        theForm.__EVENTARGUMENT.value = eventArgument;
        theForm.submit();
    }
}


/*
* Output HTML of FooterNavigation();
<div class="paging">
    <span class="previous"><span>vorige</span></span>
    <span class="moreItemsIndicator">...</span>
    <span class="resultInfo">
        <a href="#" class="pageCurrent">1</a>
        <a href="#" class="pageNum">2</a>
        <a href="#" class="pageNum">3</a>
        <a href="#" class="pageNum">4</a>
        <a href="#" class="pageNum">5</a>
        <a href="#" class="pageNum">6</a>
        <a href="#" class="pageNum">7</a>
        <a href="#" class="pageNum">8</a>
        <a href="#" class="pageNum">9</a>
        <a href="#" class="pageEnd">10</a>
    </span>
    <span class="moreItemsIndicator">...</span>
    <span class="next"><a href="#">volgende</a></span>
</div>

<ul id="nieuwslist">
    <li><a class="current" href="zoekresultaat.htm" title="pagina 1">1</a></li>
    <li><a href="zoekresultaat.htm" title="pagina 2">2</a></li>
    <li><a href="zoekresultaat.htm" title="pagina 3">3</a></li>
    <li><a href="zoekresultaat.htm" title="pagina 4">4</a></li>
</ul>




*/

/**
* @param itemsOnPage:Number (number of items per Page)
* @param itemsTotal:Number (Total number of view items )
* @param pagingNumbersToShow:Number (amount of pagingNumbers to show in Paging)
* @param currentPage:Number (The number of the page currently visible;)
* @param pagingURL:String
* @param pagingID:String id of div to insert paging into. For example ""
* @return  
*/
function FooterNavigation(itemsOnPage,itemsTotal,pagingNumbersToShow,currentPage,pagingURL,pagingID)
{
    //Check if DOM is available;
    if(!document.getElementById)
    {
        return;
    }
     
    /*
    * Paging settings:
    */
    this._itemsOnPage = itemsOnPage; // number of items per Page;
    this._itemsTotal = itemsTotal; // total number of items;
    this._pagingNumbersToShow = pagingNumbersToShow; // amount of pagingNumbers to show in Paging -> number must be odd in order to place active paging number in the paging center;    
    this._intCurrentPage = currentPage; // The number of the page currently visible;
    this._currentUrl = pagingURL; // URL of the current Page
    this._pagingUrlPrefix = 'viewPage'; // URL variable prefix to redirect to other paging Number.
    this._pagingID = pagingID;
    this._pagingLinkUrlPrefix = 'javascript:__doPostBack2("'+ this._currentUrl.toString() + '",';
    /*
    * End paging Settings
    */
    
    this._arrPagingNrs = this._createPagingArr();
    //this._previousLink = this._createPreviousLink();
    //this._previousItemsIndicator = this._createPreviousItemIndicator();
    this._objPagingLinks = this._createPagingLinks();
    //this._nextItemsIndicator = this._createNextItemIndicator();
    //this._nextLink = this._createNextLink();
       
    this._pagingContainer = document.getElementById(this._pagingID);
    
    //Delete Childnodes of this._pagingContainer
    while (this._pagingContainer.childNodes.length)
    {
        this._pagingContainer.removeChild(this._pagingContainer.childNodes[0]);        
    }
    
    this._pagingChildNodes = this._pagingContainer.childNodes
	
	/*var pagingTitle;
    pagingTitle = document.createElement('span');
    pagingTitle.innerHTML = "Pagina:&nbsp; ";
	if (this._itemsTotal == 0)
	{
		pagingTitle.innerHTML = "";
	}
    
    this._pagingContainer.appendChild(pagingTitle);*/
    
    //this._pagingContainer.appendChild(this._previousLink);
    //~ if(this._previousItemsIndicator !== null)
    //~ {
        //~ this._pagingContainer.appendChild(this._previousItemsIndicator);
    //~ }
    this._pagingContainer.appendChild(this._objPagingLinks);
    //~ if(this._nextItemsIndicator !== null)
    //~ {
        //~ this._pagingContainer.appendChild(this._nextItemsIndicator);
    //~ }
    //this._pagingContainer.appendChild(this._nextLink);
}

FooterNavigation.prototype._createPagingArr = function()
{
    var pagesTotal = Math.ceil(this._itemsTotal / this._itemsOnPage);
    var intShiftPositions = Math.floor((this._pagingNumbersToShow - 1)/2); // the difference between center and first/last paging displayed
    var intStartItem;
    var returnValue = new Array();
	
	/* toevoeging door Hanneke:
	Als PagesTotal kleiner dan of gelijk is aan max aantal te tonen pagina's,
	hoeft er helemaal niet ingewikkeld gedaan te worden */
	if (pagesTotal <= this._pagingNumbersToShow)
	{
		for (var i=1 ; i<=pagesTotal ; i++)
		{
			returnValue.push(i);
		}
	}
	else
	{
		/* einde toevoeging door Hanneke */
		
	    // Fill pagingLinks with correct linkNumbers
	    /* if currentPage is one of the first few paging Numbers:
	    * start paging at Number 1 and display max. 9 paging numbers
	    */
	    if ((this._intCurrentPage - intShiftPositions) <= 1)
	    {
	        
	        if (pagesTotal < this._pagingNumbersToShow)
	        {
	                    
	            for (var i=1 ; i<=pagesTotal ; i++)
	            {
	                returnValue.push(i);
	            }
	            //console.debug('1a arrPagingNrs: '+arrPagingNrs);
	            //return arrPagingNrs;
	        }
	        else if (pagesTotal != this._pagingNumbersToShow)
	        {
	            
	            for (var i=1 ; i<=this._pagingNumbersToShow ; i++)
	            {
	                returnValue.push(i);
	            }
	            //console.debug('1b arrPagingNrs: '+arrPagingNrs);
	            
	        }
	    }
	    
	    /* if currentPage is not a beginning or starting Number:
	    * start paging a few numbers left of CurrentPage
	    */
	    if(((this._intCurrentPage - intShiftPositions) > 1) && ((this._intCurrentPage + intShiftPositions) < pagesTotal))
	    {
	        intStartItem = (this._intCurrentPage - intShiftPositions);
	        var intStopItem = (intStartItem + this._pagingNumbersToShow);
	        //console.debug('intStartItem: '+intStartItem);    
	        //console.debug('intStopItem: '+intStopItem);    
	        
	        for (var i=intStartItem ; i<intStopItem ; i++)
	        {
	            returnValue.push(i);
	        }
	        //console.debug('2 returnValue: '+returnValue);        
	    }
	    
	    /* if currentPage is one of the last few paging Number:
	    * start paging at itemsTotal - _pagingNumbersToShow
	    * check if startItem is not smaller then 1
	    */    
	    if(((this._intCurrentPage + intShiftPositions) >= pagesTotal) && (pagesTotal >= this._pagingNumbersToShow))
	    {
	        intStartItem = (pagesTotal - this._pagingNumbersToShow + 1);       
	        for (var i=intStartItem ; i<=pagesTotal ; i++)
	        {
	            returnValue.push(i);
	        }
	        //console.debug('3 arrPagingNrs: '+arrPagingNrs);        
	    }
		
	/* toevoeging door Hanneke */
	}
	/* einde toevoeging door Hanneke */
    
    return returnValue;
};

/**
* Output HTML
* Returns HTML object containing set of links according to arrPagingNrs values;
*   Structure of HTML output:  
*   <span class="resultInfo">
*       <a href="#" class="pageCurrent">1</a>
*       <a href="#" class="pageNum">2</a>
*       <a href="#" class="pageNum">3</a>
*       <a href="#" class="pageNum">4</a>
*       <a href="#" class="pageNum">5</a>
*       <a href="#" class="pageNum">6</a>
*       <a href="#" class="pageNum">7</a>
*       <a href="#" class="pageNum">8</a>
*       <a href="#" class="pageNum">9</a>
*       <a href="#" class="pageEnd">10</a>
*   </span>
*/         
FooterNavigation.prototype._createPagingLinks = function()
{
    var linkCollection = document.createElement('span');
    linkCollection.className='resultInfo';
    
    var pagingLink;
    var pagingLinkTextHolder;
    var pagingLinkText;
	//alert(this._arrPagingNrs.length);
    
    for (var i=0 ; i<this._arrPagingNrs.length ; i++)
    {
	
        if(this._arrPagingNrs[i] != this._intCurrentPage)
        {
			pagingLink = document.createElement('a');
	        pagingLinkTextHolder = document.createElement('span');       
	        pagingLink.setAttribute('href',(this._pagingLinkUrlPrefix + this._arrPagingNrs[i].toString() + ')'));
        }
        else
        {
            pagingLink = document.createElement('span');
            pagingLinkTextHolder = document.createElement('span');
        }
        
        if(this._arrPagingNrs[i] == this._intCurrentPage)
        {
            pagingLink.className='pageCurrent';
            
        }            
        else if(this._arrPagingNrs[i] == this._arrPagingNrs[(this._arrPagingNrs.length - 1)])
        {            
            pagingLink.className='pageEnd';            
        }
        else
        {
            pagingLink.className='pageNum';
        }       
           
        pagingLinkText = document.createTextNode(this._arrPagingNrs[i]);
        pagingLinkTextHolder.appendChild(pagingLinkText);
        pagingLink.appendChild(pagingLinkTextHolder);
        linkCollection.appendChild(pagingLink);
		
		if(this._arrPagingNrs[i] != this._arrPagingNrs[(this._arrPagingNrs.length - 1)])
        {
            var pagingDivider;    
            pagingDivider = document.createElement('span');
            pagingDivider.innerHTML = "|";
            linkCollection.appendChild(pagingDivider);                    
        }
    }
    
    return linkCollection;        
};

/**
* Output HTML: <span class="previous"><span>vorige</span></span>    
*/
FooterNavigation.prototype._createPreviousLink = function()
{
    var returnValue = document.createElement('span');    
    returnValue.className='previous';
    
    var previousLinkText = document.createTextNode('vorige');
    
    if (this._arrPagingNrs[0] == 1)
    {
        //span maken i.p.v. link;    
        var previousLinkReplacer = document.createElement('span');       
        previousLinkReplacer.appendChild(previousLinkText);
        returnValue.appendChild(previousLinkReplacer);
    }
    else
    {
        //previous link maken;
        var previousLinkContent = document.createElement('a');
        previousLinkContent.setAttribute('href',(this._pagingLinkUrlPrefix + (this._intCurrentPage - 1)));
        previousLinkContent.appendChild(previousLinkText);
        returnValue.appendChild(previousLinkContent);        
    }
    return returnValue;
};

/**
* Output HTML: <span class="moreItemsIndicator">...</span>    
*/
FooterNavigation.prototype._createPreviousItemIndicator = function()
{
    var returnValue = null;    
    
    if (this._arrPagingNrs[0] != 1)
    {
        returnValue = document.createElement('span');
        returnValue.className='moreItemsIndicator';
        var moreItemsText = document.createTextNode('...');
        returnValue.appendChild(moreItemsText);
    } 
       
    return returnValue;
};

/**
* Output HTML: <span class="moreItemsIndicator">...</span>    
*/
FooterNavigation.prototype._createNextItemIndicator = function()
{
    var pagesTotal = Math.ceil(this._itemsTotal / this._itemsOnPage);
    var returnValue = null;    
    
    if (this._arrPagingNrs[(this._arrPagingNrs.length-1)] != pagesTotal)
    {
        returnValue = document.createElement('span');
        returnValue.className='moreItemsIndicator';
        var moreItemsText = document.createTextNode('...');
        returnValue.appendChild(moreItemsText);
    } 
       
    return returnValue;
};

/**
* Output HTML: <span class="next"><a href="#">volgende</a></span>   
*/
FooterNavigation.prototype._createNextLink = function()
{
    var pagesTotal = Math.ceil(this._itemsTotal / this._itemsOnPage);
        
    var returnValue = document.createElement('span');
    returnValue.className='next';
    
    var nextLinkText = document.createTextNode('volgende');
    
    if (this._arrPagingNrs[(this._arrPagingNrs.length-1)] == pagesTotal)
    {
        var nextLinkReplacer = document.createElement('span');       
        nextLinkReplacer.appendChild(nextLinkText);
        returnValue.appendChild(nextLinkReplacer);        
    }
    else
    {
        var nextLinkContent = document.createElement('a');
        nextLinkContent.setAttribute('href',(this._pagingLinkUrlPrefix + (this._intCurrentPage + 1)));
        nextLinkContent.appendChild(nextLinkText);
        returnValue.appendChild(nextLinkContent);     
    }
    
    return returnValue;
};