// JavaScript Document
function changebutton(obj)
{
	var tabs=new Array ("newsletter","chat","podcast","column");
	for (var i in tabs){
		if(tabs[i]==obj){
			document.getElementById(tabs[i]).style.background="#303030";
 			document.getElementById(tabs[i]).style.color="#ffffff";
 			document.getElementById(tabs[i]+"-content").style.display="block";
 		}
		else{
			document.getElementById(tabs[i]).style.background="#202020";	
 			document.getElementById(tabs[i]).style.color="#ffffff";
 			document.getElementById(tabs[i]+"-content").style.display="none";
		}
	}
}