	ifDefined: function(id, defaultValue) {
		return "ifDefined(" + id + "," + this.escape(defaultValue) + ")";
	},
The software constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.