function gr(co){	
	document.getElementById('cf1').style.backgroundImage="url(img/mainnews_non.png)";
	document.getElementById('cf2').style.backgroundImage="url(img/mainnews_non.png)";
	document.getElementById('cf3').style.backgroundImage="url(img/mainnews_non.png)";	
	document.getElementById('gk1').style.display="none";
	document.getElementById('gk2').style.display="none";
	document.getElementById('gk3').style.display="none";	
	document.getElementById('cf'+co+'').style.backgroundImage="url(img/mainnews_hover.png)";
	document.getElementById('gk'+co+'').style.display="block";
}
function linki()
{
 document.getElementById('linki').style.display='block';
 document.getElementById('linki2').style.display='none';
 }

function linki2()
{
 document.getElementById('linki').style.display='none';
 document.getElementById('linki2').style.display='block';
 }