// This Javascript is written by Peter Velichkov (http://www.creonfx.com)
// and is distributed under the following license : http://creativecommons.org/licenses/by-sa/3.0/
// Use and modify all you want just keep this comment. Thanks
 
var pagerInit = function(){
 
	var contentHeight = contentArea.getSize().y;
	pagerPagesCount = (contentHeight / pagerPageHeight).toInt();
	if (contentHeight % pagerPageHeight != 0 ) pagerPagesCount++;
	if (pagerPagesCount === 1) return;
 
	$('content_text_prev').addEvent('click',function(){
		pagerChangePage(pagerCurPage - 1);
	});

	$('content_text_next').addEvent('click',function(){
		pagerChangePage(pagerCurPage + 1);
	});
	if (pagerPagesCount > 1) {
		$('content_text_next').setStyle('display', 'block');
		$('content_text_pages').set('text', '1/'+pagerPagesCount);
	}

};
 
var pagerChangePage = function(page){
 
	pagerCurPage = page;

	if (pagerCurPage === 1) {
		$('content_text_prev').setStyle('display', 'none');
	}else{
		$('content_text_prev').setStyle('display', 'block');
	}
 
	if (pagerCurPage === pagerPagesCount) {
		$('content_text_next').setStyle('display', 'none');
	}else{
		$('content_text_next').setStyle('display', 'block');
	}
	
	$('content_text_pages').set('text', page+'/'+pagerPagesCount);
	contentArea.setStyle('top', (-1) * pagerPageHeight * (page - 1));
};