function show(news1,news2,news6,news7,nav1,nav2,nav3,nav4)
{


	document.getElementById(news1).style.display="block";	
	document.getElementById(news2).style.display="none";
	document.getElementById(news6).style.display="none";
	document.getElementById(news7).style.display="none";
	document.getElementById(nav1).style.backgroundImage="url(images/fa.jpg)";		
	document.getElementById(nav1).style.backgroundPosition="-0px top";
	document.getElementById(nav1).style.color="#5D5D5D";		
	document.getElementById(nav2).style.backgroundImage="url(images/he.jpg)";			
	document.getElementById(nav2).style.backgroundPosition="0px";
	document.getElementById(nav2).style.color="#5D5D5D";
	document.getElementById(nav3).style.backgroundImage="url(images/he.jpg)";			
	document.getElementById(nav3).style.backgroundPosition="0px";
	document.getElementById(nav3).style.color="#5D5D5D";
	document.getElementById(nav4).style.backgroundImage="url(images/he.jpg)";			
	document.getElementById(nav4).style.backgroundPosition="0px";
	document.getElementById(nav4).style.color="#5D5D5D";

}