Refereing to object dynamically after it is created dynamically

Hi,

Im sure this is a very silly problem, but im trying to create a li and then set its class in jquery but it doesn’t seam to be working


		var listid = field + "_errormessage";

		if (errorMessage != "")
		{
			$("#errorul").append("<li id='" + listid + "'>" + errorMessage + "</li>");
		}
		
		$(listid).addclass("blue");

The variable listid is a string not a DOM element.

$(‘#’ + listid).addClass(‘blue’);