function showco(id)
	{
		
		node="document.all.co"+id+".style.display";
		
		str="if ("+node+"=='none') {"+node+"='inline'; document.all.icon"+id+".src=arr[2].src;} else {"+node+"='none'; document.all.icon"+id+".src=arr[1].src;}";
				
		eval(str);
		
	}