function report_expand(id, newC) {
		var i=0;
		var obj;
		while (obj = document.getElementById(id+"_"+i)) {
			if (newC) { 
				obj.className = newC; 
			} else if (obj.className == 'show') { 
				obj.className = 'hide'; 
			} else if (obj.className == 'hide') { 
				obj.className = 'show';
			} else if (obj.className == 'tdwn') { 
				obj.className = 'tup'; 
			} else if (obj.className == 'tup') { 
				obj.className = 'tdwn'; 
			}
			i++;
		}
	}