function GetRatingImage(numStars)
{
    if(numStars == 0)
	{
		return "/img/rating/green/" + "stars_1_notinterested.png";
	}
    return "/img/rating/green/" +  "stars_1_" + numStars + ".png";
}
function SwapImage( star, id )
{    
    PreviousImage = document.images["StarRatingImg"+id].src;
    
    if (star > 0) {

        document.images["StarRatingImg"+id].src = GetRatingImage(star);
        
    }
    if (star == 0){
    	document.images["StarRatingImg"+id].src = GetRatingImage(star);
    }
}
function SwapImageBack(id)
{
    if( PreviousImage != '' )
        document.images["StarRatingImg"+id].src =PreviousImage;
}