Regex for sublime text that replace css background url for Rails

gistfile1.css

/* 
  FIND WITH: url\(images\/([a-zA-Z\w+\-.]+)\)? 
*/
div {
  background: url(images/ui-bg_glass_75_ffffff_1x400.png);
}

/* 
  REPLACE WITH: url(image-path("\1")) 
*/
div {
  background: url(image-path("ui-bg_glass_75_ffffff_1x400.png"));
}