function GetNextImage(nDirection){    
    if(arImages.length < 4) return;
    
    var oGalleryImage0 = Find('img_Gallery_0');
    var oGalleryImage1 = Find('img_Gallery_1');
    var oGalleryImage2 = Find('img_Gallery_2');        
    var oIndex0 = Find('h_index_0');
    var oIndex1 = Find('h_index_1');
    var oIndex2 = Find('h_index_2');    
   
    if(nDirection == -1){
        nCurrentIndex++;
    }else{
        nCurrentIndex--;
    }     
    for(i = 0; i < 3; i++){	
        var nArrayIndex = (nCurrentIndex + i) % arImages.length;        
        eval("oGalleryImage" + i + ".src = '" + ImagesPath + "small/" + arImages[nArrayIndex] + "';");				
        eval("oIndex" + i + ".value = " + (nArrayIndex) + ";");	
    }    
}