public void Expression(String name) {
		if(Values.getType(name).equals(("TYPENUM"))) {
			String value = NumExpression();
			if(value != null)
				Values.setValue(name,value);	
		}
		else if(Values.getType(name).equals(("TYPESTR"))) {
			String value = StrExpression();
			if(value != null)
				Values.setValue(name,value);	
		}
		else if(Values.getType(name).equals(("TYPEBOOL"))) {
			String value = BoolExpression();
			if(value != null)
				Values.setValue(name,value);	
		}
		else {
			Error("Not possible. All variable must have a type.");
		}	
	}