can some on help me on how i can reference images i have all my images stored in an image folder which is located in the root folder (..\images) in my css class i have the the following

#image
{  background-position: left;
  background-repeat: no-repeat;} 

.background
{
  background-image: (..\images\image.gif);
}

and in my .cs file i have

image.Attributes.Add("class", "background");

image is a div tag which is in my aspx code !!

when i run this code i image doesnt show, any ideas what i might be doing wrong