function shifter(id,tabtext,img) {
	document.getElementById('newsReaderImage').style.backgroundImage = "url("+img+")";
	document.getElementById('tab1').className = "";
	document.getElementById('tab2').className = "";
	document.getElementById('tab3').className = "";
	document.getElementById('tab4').className = "";
	document.getElementById('tab1text').style.display = "none";
	document.getElementById('tab2text').style.display = "none";
	document.getElementById('tab3text').style.display = "none";
	document.getElementById('tab4text').style.display = "none";
	document.getElementById(tabtext).style.display = "block";
	document.getElementById(id).className = "selected";
}