function xw(obj){
		document.getElementById("xwa").style.display="none";
		document.getElementById("xwb").style.display="none";
		document.getElementById(obj).style.display="";
	}
function tp(obj){
		document.getElementById("tpa").style.display="none";
		document.getElementById("tpb").style.display="none";
		document.getElementById(obj).style.display="";
	}