function showShapeImage(imageName){
 if( document.getElementById ){
  shapeImage = document.getElementById('ctl00_cphMainContent_ucCushionsEdit_divShape');
  if(shapeImage != null){
   var bgImage = "url('../Images/Shapes/" + imageName + ".gif')";
   shapeImage.style.backgroundImage = bgImage;
  }
 }
}