function showCD(n){
	var zcd=document.getElementById('zcd'+n);
	if (zcd&&zcdS){
		zcdS.innerHTML=zcd.innerHTML;
		if (zcd.left){
			zcdS.style.textAlign='left';
			zcdS.style.marginLeft=zcd.left;
		}else if(zcd.right){
			zcdS.style.textAlign='right';
			zcdS.style.marginRight=zcd.right;
		}else{
			zcdS.style.textAlign='';
		}
	}
}