function changetab(num,more){ 

	
	var num;
	var idn;
	var cn;
	var sh;
	var more;
	
	document.getElementById('n1').className='n1';
	document.getElementById('n2').className='n2';
	document.getElementById('n3').className='n3';
	document.getElementById('n4').className='n4';

	idn='n' + num;
	sh='s' + num;
	cn=idn + num;

	document.getElementById(idn).className=cn;
	
	var url="ajax-files/news_feed.php";
	
	if(more=='yes')
	pars = "cid="+num+"&more="+more+"&sid="+Math.random();
	else
	pars = "cid="+num+"&sid="+Math.random();
	
	url = url + "?" + pars;

	
	new Ajax.Request( url, { method:'get', asynchronous:true, evalScripts:true, onComplete: showFeed , onLoading: showLoad }); 

}

function showFeed(transport) { 



	$('feed').innerHTML = transport.responseText;
	$('loading').style.display  = 'none';
	$('feed').style.display  = 'block';

}

function showLoad(transport) { 
	
	document.getElementById('loading').style.display  = 'block';
	$('feed').style.display  = 'none';
	$('loading').showFeed();
	
}