archiveFolderAndScript = '/archive/';
var selectedIndex = 0;

function changeArticle(articleIndex, type,book_url_title,article_url_title){
	document.getElementById("article_"+(selectedIndex)).className="download_row";				
	
	oldPage = Math.ceil((selectedIndex+1)/5) - 1;
	newPage = Math.ceil((articleIndex+1)/5) - 1;
	
	changeArticlePage(oldPage, newPage);
	
	selectedIndex = articleIndex;
	
	setClientCallback('');
	qs = 'a=changeArticle';
	qs += '&type='+type;
	qs += '&book='+book_url_title;
	qs += '&title='+article_url_title;
	client.makeRequest(archiveFolderAndScript,qs);
}	

function changeArticleList(type, book_url_title){
	selectedIndex = 0;
	setClientCallback('');
	qs = 'a=changeArticleList';
	qs += '&type='+type;
	if(book_url_title)
		qs += '&book='+book_url_title;
	client.makeRequest(archiveFolderAndScript,qs);
}

function changeArticlePage(oldPage,newPage){
	oldObject = document.getElementById("page_"+oldPage);
	oldObject.style.visibility= "hidden";
	oldObject.style.display = "none";

	newObject = document.getElementById("page_"+newPage);
	newObject.style.visibility= "visible";
	newObject.style.display = "inline";
}